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SERVICE 
MANUAL 

Published in July '01 

842BM110A 

2BM70760A 

Revison 2.4 



Revision history 



Version 


Date 


Replaced pages 


Remarks 


1.0 


July-2001 


- 


- 


2.0 


20-Aug-2001 


- 


- 


2.1 


03-Sep-2001 


1-3-12, 16, 17 

1-6-10,21,22,24,39,42 

2-1-2,5, 13, 16, 19,22,27,32,35 

2-2-5 

2-4-2 




2.2 


26-Sep-2001 


1-4-3, 4, 5, 6, 8, 23, 24, 25, 26, 27 

1-6-4,45 

2-4-3 


- 


2.3 


17-Oct-2001 


2-1-35 


- 


2.4 


03-Dec-2001 


1-5-32, 33, 34, 35, 36, 37, 38, 39 


Missing page 



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Safety precautions 



This booklet provides safety warnings and precautions for our service personnel to ensure the safety of 
their customers, their machines as well as themselves during maintenance activities. Service personnel 
are advised to read this booklet carefully to familiarize themselves with the warnings and precautions 
described here before engaging in maintenance activities. 



Safety warnings and precautions 

Various symbols are used to protect our service personnel and customers from physical danger and 
to prevent damage to their property. These symbols are described below: 



^DANGER. High risk of serious bodily injury or death may result from insufficient attention to or incorrect 
compliance with warning messages using this symbol. 

^WARNING:Serious bodily injury or death may result from insufficient attention to or incorrect compliance 
with warning messages using this symbol. 

A CAUTION: Bodily injury or damage to property may result from insufficient attention to or incorrect 
compliance with warning messages using this symbol. 

Symbols 

The triangle (A) symbol indicates a warning including danger and caution. The specific point 
of attention is shown inside the symbol. 

/ ;\ General warning. 

/ *\ Warning of risk of electric shock. 

Warning of high temperature. 

indicates a prohibited action. The specific prohibition is shown inside the symbol. 
C^O General prohibited action. 





Disassembly prohibited. 

indicates that action is required. The specific action required is shown inside the symbol. 
AB General action required. 

Remove the power plug from the wall outlet. 

Always ground the printer. 



© 



1. Installation Precautions 

AWARNING 

• Do not use a power supply with a voltage other than that specified. Avoid multiple connections to 
one outlet: they may cause fire or electric shock. When using an extension cable, always check 
that it is adequate for the rated current 



■ Connect the ground wire to a suitable grounding point. Not grounding the printer may cause fire or 
electric shock. Connecting the earth wire to an object not approved for the purpose may cause 
explosion or electric shock. Never connect the ground cable to any of the following: gas pipes, 
lightning rods, ground cables for telephone lines and water pipes or faucets not approved by the 
proper authorities 



ikCAUTION: 

• Do not place the printer on an infirm or angled surface: the printer may tip over, causing injury. 

• Do not install the printer in a humid or dusty place. This may cause fire or electric shock 

• Do not install the printer near a radiator, heater, other heat source or near flammable material. 
This may cause fire 



■ Allow sufficient space around the printer to allow the ventilation grills to keep the machine as cool 
as possible. Insufficient ventilation may cause heat buildup and poor copying performance 



• Always handle the machine by the correct locations when moving it 

• Always use anti-toppling and locking devices on printers so equipped. Failure to do this may 
cause the printer to move unexpectedly or topple, leading to injury 

• Avoid inhaling toner or developer excessively. Protect the eyes. If toner or developer is 
accidentally ingested, drink a lot of water to dilute it in the stomach and obtain medical attention 
immediately. If it gets into the eyes, rinse immediately with copious amounts of water and obtain 
medical attention 

• Advice customers that they must always follow the safety warnings and precautions in the 
printer's instruction handbook 









© 

© 



2. Precautions for Maintenance 

AWARNING 

• Always remove the power plug from the wall outlet before starting machine disassembly. 



■ Always follow the procedures for maintenance described in the service manual and other related 
brochures 



• Under no circumstances attempt to bypass or disable safety features including safety 
mechanisms and protective circuits 



Always use parts having the correct specifications 

■ Always use the thermostat or thermal fuse specified in the service manual or other related 
brochure when replacing them. Using a piece of wire, for example, could lead to fire or other 
serious accident 



• When the service manual or other serious brochure specifies a distance or gap for installation of a 
part, always use the correct scale and measure carefully 



1 Always check that the printer is correctly connected to an outlet with a ground connection 

■ Check that the power cable covering is free of damage. Check that the power plug is dust-free. If 
it is dirty, clean it to remove the risk of fire or electric shock 



• Never attempt to disassemble the optical unit in machines using lasers. Leaking laser light may 
damage eyesight 

• Handle the charger sections with care. They are charged to high potentials and may cause 
electric shock if handled improperly 



ACAUTION 

• Wear safe clothing. If wearing loose clothing or accessories such as ties, make sure they are 
safely secured so they will not be caught in rotating sections 








© 

e 
© 




A 

A 
A 



• Use utmost caution when working on a powered machine. Keep away from chains and belts 

% 



Handle the fixing section with care to avoid burns as it can be extremely hot. 



1 Check that the fixing unit thermistor, heat and press rollers are clean. Dirt on them can cause 
abnormally high temperatures 



■ Do not remove the ozone filter, if any, from the printer except for routine replacement. 




Q 





1 Do not pull on the AC power cord or connector wires on high-voltage components when removing 
them; always hold the plug itself 



• Do not route the power cable where it may be stood on or trapped. If necessary, protect it with a 
cable cover or other appropriate item 



• Treat the ends of the wire carefully when installing a new charger wire to avoid electric leaks. 

■ Remove toner completely from electronic components 

■ Run wire harnesses carefully so that wires will not be trapped or damaged 

• After maintenance, always check that all the parts, screws, connectors and wires that were 
removed, have been refitted correctly. Special attention should be paid to any forgotten 
connector, trapped wire and missing screws 

• Check that all the caution labels that should be present on the machine according to the 
instruction handbook are clean and not peeling. Replace with new ones if necessary 



• Handle greases and solvents with care by following the instructions below: 

■ Use only a small amount of solvent at a time, being careful not to spill. Wipe spills off completely. 

■ Ventilate the room well while using grease or solvents. 

■ Allow applied solvents to evaporate completely before refitting the covers or turning the main 
switch on. 

■ Always wash hands afterwards. 

• Never dispose of toner or toner bottles in fire. Toner may cause sparks when exposed directly to 
fire in a furnace, etc 

• Should smoke be seen coming from the printer, remove the power plug from the wall outlet 
immediately 



3. Miscellaneous 

AWARNING 

• Never attempt to heat the drum or expose it to any organic solvents such as alcohol, other than 
the specified refiner; it may generate toxic gas 






Q 

A 

O 

© 












FS-8000C/CD/CN 

CONTENTS 

1-1 Specifications 

1-1-1 Specifications 1-1-2 

1-1-2 Parts names and their functions 1-1-4 

(1) Printer 1-1-4 

(2) Operation panel 1-1-5 

1-1-3 Cross section view 1-1-6 

1-2 Handling Precautions 

1-2-1 Drum 1-2-2 

1-2-2 Developer and toner container 1-2-2 

1-2-3 Installation environment 1-2-2 

1-3 Installation 

1-3-1 Unpacking and installation 1-3-2 

(1) Installation procedure 1-3-2 

1-4 Service Mode and Maintenance 

1-4-1 Service mode 1-4-2 

(1) Executing service mode 1-4-2 

(2) Contents of service mode items 1-4-3 

1-4-2 Maintenance 1-4-11 

(1) Replacing the toner container 1-4-11 

(2) Cleaning the main charger unit 1-4-13 

(3) Cleaning the printer 1-4-16 

(4) Replacing the oil roller unit 1-4-20 

(5) Cleaning the heat and press/heat rollers of paper dust 1-4-21 

(6) Cleaning the fuser unit 1-4-22 

1-4-3 Downloading printer firmware for upgrade 1-4-23 

(1) Format for the firmware files 1-4-23 

(2) Downloading firmware via the parallel interface 1-4-24 

(3) Downloading firmware using the memory card 1-4-25 

(4) Downloading message data 1-4-27 

1-5 Troubleshooting 

1-5-1 Paper misfeed detection 1-5-2 

(1) Paper misfeed indication 1-5-2 

(2) Paper misfeed detection sensors 1-5-3 

1-5-2 Self-diagnosis 1-5-4 

(1) Self-diagnostic function 1-5-4 

1-5-3 Image formation problems 1-5-32 

(1) No image appears (entirely white) 1-5-33 

(2) No image appears (entirely black) 1-5-33 

(3) Dirt on the top edge 1-5-33 

(4) Dirt on the back side 1-5-34 

(5) Image is too light 1-5-34 

(6) Background is visible 1-5-34 

(7) Awhite line appears longitudinally 1-5-35 

(8) A line appears longitudinally 1-5-35 

(9) Oily streaks (15 cm intervals) appears at the top of the page longitudinally 1-5-35 

(10) A line appears laterally 1-5-36 



FS-8000C/CD/CN 

(11) One side of the print image is darker than the other 1-5-36 

(12) Dots appear on the image 1-5-36 

(13) The leading edge of the image is misaligned with the original image 1-5-37 

(14) Paper creases 1-5-37 

(15) Offset occurs 1-5-37 

(16) Image is partly missing 1-5-38 

(17) Fusing is poor 1-5-38 

(18) Dragged dirt lines appears 1-5-38 

1-6 Assembly and Disassembly 

1-6-1 Precautions for assembly and disassembly 1-6-2 

(1) Precautions 1-6-2 

1-6-2 Paper feed section 1-6-3 

(1) Detaching and refitting the MP tray unit 1-6-3 

(2) Detaching and refitting the MP tray feed roller and MP tray retard roller 1 -6-4 

(3) Detaching and refitting the face-down unit 1-6-5 

(4) Detaching and refitting drive assembly B 1-6-6 

(5) Detaching and refitting drive assembly A 1-6-6 

(6) Detaching and refitting the paper conveying belts 1-6-7 

(7) Detaching and refitting the paper conveying fan motors 1 and 2 1-6-8 

(8) Detaching and refitting the upper and lower registration rollers 1-6-9 

(9) Detaching and refitting the middle roller 1-6-10 

1-6-3 Laser scanner unit 1-6-11 

(1) Detaching and refitting the laser scanner unit 1-6-11 

1-6-4 Main charger unit 1-6-13 

(1) Detaching and refitting the main charger unit 1-6-13 

(2) Detaching and refitting the main charger grid 1-6-13 

1-6-5 Drum unit 1-6-14 

(1) Detaching and refitting the drum unit 1-6-14 

1-6-6 Primary transfer unit 1-6-15 

(1) Detaching and refitting the primary transfer unit 1-6-15 

(2) Detaching and refitting the cleaning brush unit 1-6-15 

1-6-7 Developers (and toner feed section) 1-6-16 

(1) Detaching and refitting the developers 1-6-16 

(2) Detaching and refitting the waste toner duct assembly 1-6-18 

(3) Detaching and refitting the black toner feed assembly 1-6-19 

(4) Detaching and refitting the black toner container feed assembly 1-6-19 

(5) Detaching and refitting the black toner feed drive assembly 1-6-20 

1-6-8 Secondary transfer unit 1-6-21 

(1) Detaching and refitting the transfer roller and the separation charger unit 1-6-21 

(2) Detaching and refitting the secondary transfer unit shift clutch 1-6-23 

1-6-9 Fuser unit (and drive section) 1-6-24 

(1) Detaching and refitting the fuser unit 1-6-24 

(2) Detaching and refitting the fuser top cover and upper separator bracket 1 -6-24 

(3) Detaching and refitting the upper and lower fuser thermistors 1-6-26 

(4) Detaching and refitting the upper and lower thermostats 1-6-28 

(5) Detaching and refitting the upper and lower heater lamps 1-6-29 

(6) Detaching and refitting the heat roller and the press/heat roller 1 -6-30 

(7) Detaching and refitting the separators of lower separator bracket 1 -6-34 

(8) Detaching and refitting drive assembly C 1-6-35 

1-6-10 PWBs and high voltage units 1-6-36 

(1) Detaching and refitting the main controller PWB 1-6-36 



FS-8000C/CD/CN 

(2) Detaching and refitting the engine controller PWB 1-6-37 

(3) Detaching and refitting the power supply unit 1-6-38 

(4) Detaching and refitting the developing/cleaning brush bias high voltage unit 1-6-40 

(5) Detaching and refitting the main charger high voltage unit 1-6-41 

(6) Detaching and refitting the separation charger high voltage unit 1-6-42 

(7) Detaching and refitting the paper feeder/options relay PWB 1-6-44 

(8) Detaching and refitting the transfer roller bias high voltage unit 1-6-44 

1-6-11 Others 1-6-45 

(1) Detaching and refitting the ozone filter 1-6-45 



2-1 Mechanical Construction 

2-1-1 Paper feed unit and secondary transfer unit 2-1-2 

(1) Paper feed unit 2-1-2 

(2) Secondary transfer unit 2-1-5 

2-1-2 MP tray unit 2-1-6 

2-1-3 Laser scanner unit 2-1-8 

2-1-4 Developer 2-1-10 

(1) Yellow developer 2-1-11 

(2) Magenta developer 2-1-14 

(3) Cyan developer 2-1-17 

(4) Black developer 2-1-20 

(5) Transition of toner for development 2-1-24 

2-1-5 Drum unit and main charger unit 2-1-25 

(1) Drum unit 2-1-25 

(2) Main charger unit 2-1-29 

2-1-6 Primary transfer unit 2-1-30 

(1) Primary transfer unit 2-1-30 

(2) Cleaning brush unit 2-1-30 

2-1-7 Fuser unit 2-1-35 

2-1-8 Face-down tray unit 2-1-38 

2-2 Electrical Parts Layout 

2-2-1 Electrical parts layout 2-2-2 

(1) Main frame, Face-down unit, and MP tray unit 2-2-2 

(2) Developers, drum unit and main charger unit 2-2-3 

(3) Primary transfer, secondary transfer, paper feed, and fuser units 2-2-5 

(4) Main frame rear and controller box 2-2-6 

2-3 PWB Operation and Connector Signal Assignment 

2-3-1 Engine controller PWB [KP-801] 2-3-2 

2-3-2 Main controller PWB [KP-800] 2-3-11 

2-4 Appendixes 

Connection diagram 2-4-2 

Maintenance kits 2-4-3 

Periodic maintenance procedures 2-4-4 



Chapter I 



CONTENTS 
1-1 Specifications 

1-1-1 Specifications 1-1-2 

1-1-2 Parts names and their functions 1-1-4 

(1) Printer 1-1-4 

(2) Operation panel 1-1-5 

1-1-3 Cross section view 1-1-6 



FS-8000C/CD/CN 

1-1-1 Specifications 

Type Console type color laser printer 

Printing system Electro photographic four colors (cyan, magenta, yellow, and black) printing. 4-cycle 

intermediate transfer drum. 
Paper Cassette: Plain paper (64 to 90 g/m 2 ) 

MP tray: Plain paper (64 to 90 g/m 2 ), Thick paper (90 to 220 g/m 2 ) 

Special paper: Transparencies, tracing paper, colored paper, letterhead and 

envelopes 

Note: Use the MP tray for special paper. 
Printing sizes Maximum: A3/Ledger 

Minimum: A6R /5V2" x 8 1 /2"/Folio (When the MP tray is used.) 
Print speed A4: 8 pages/30 pages per min. [Color/Monochrome] 

A4-R*: 4 pages/15 pages per min. [Color/Monochrome] 

A5: 8 pages/15 pages per min. [Color/Monochrome] 

B5: 4 pages/15 pages per min. [Color/Monochrome] 

A3: 4 pages/15 pages per min. [Color/Monochrome] 

Letter: 8 pages/30 pages per min. [Color/Monochrome] 

Letter-R*: 4 pages/15 pages per min. [Color/Monochrome] 

Legal: 4 pages/15 pages per min. [Color/Monochrome] 

Note(*): MP tray only 
First copy time 28 s/17 s [Color/Monochrome] 

Note: A4, Ecopower mode off, room temperature 23° C/73.4 °F, 60 % RH 

Warm-up time Approximately 300 s or less (room temperature 23° C/73.4 °F, 60 % RH) 

Paper feed system FS-8000C/CN model: Paper feeder PF-30A (2 universal type cassettes) and MP 

(Multi purpose) tray 

FS-8000CD model: Duplex unit PD-30 (1 universal type cassette) and MP (Multi 

purpose) tray 
Paper loading capacity Cassette: 500 sheets (80 g/m 2 , 0.11 mm) 

MP (Multi purpose) tray: 150 sheets (80 g/m 2 , 0.11 mm) 
Printout stacking capacity Face-down tray: 500 sheets with paper full sensor 

Face-up tray: 150 sheets (80 g/m 2 , 0.11 mm) 

Photoconductor aSi drum (diameter 80 mm) 

Charging system Single positive corona charging 

Exposure light source Semiconductor laser 

Exposure scanning system Polygon mirror 

Developing system Dry, reverse developing (magnetic brush) 

Developer: 2-component 

Toner density control: T/C sensor 

Toner replenishing: automatic from the toner container 
Transfer system Primary: Intermediate transfer drum (diameter 1 60 mm) 

Secondary: Transfer roller 

Separation system AC corona separation charging 

Fixing system Heat roller and press/heat roller (soft type, diameter 45 mm) 

Heat source: 2 halogen heaters (500 W) 

Control temperature: 185 °C/365 °F (at normal ambient temperature) 

Abnormally high temperature protection device: thermostats 

Charge erasing system Exposure by eraser lamp (LED array) 

Cleaning system Drum: Cleaning blade 

Primary (intermediate) transfer drum: Fur brush 
Controller hardware CPU: Power PC750CX 400 MHz 

Code ROM: 8 MB (2 system DIMM PWBs in sockets) 

Font ROM: 4 MB (PCL and KPDL) 

Main RAM: 64 MB (standard) 

Option expansion RAM: 2 sockets (Maximum 256 MB, including the standard RAM) 

Option memory card: 1 slot (CompactFlash card) 

Option interface*: 2 slots (KUIO LV) 

Note (*): A network interface card is standard-installed with FS-8000CN. 



1-1-2 



FS-8000C/CD/CN 

Host computer interface Parallel: Bi-directional parallel (IEEE 1284 Nibble/ECP mode) 

Serial: RS-232C, 115.2 kbps maximum 

Option: KUI0 2slots 
Controller software Emulation: PCL 5C, KPDL, KCGL 

Fonts: PCL, PS, PRESCRIBE 

Smoothing KIR (monochrome mode only) 

Toner saving EcoPrint mode (monochrome mode only) 

Resolution 600 x 600 dpi 

Dimensions Printer main unit: 590 x 585 x 429 mm (W x D x H) 

23 1 /4" x 23 5 /ie" x 1 6 7 /s" (W x D x H) 

Paper feeder PF-30A: 560 x 566 x 251 mm (W x D x H) 

223/s" x 22 1 /4" x 97/ 8 " (W x D x H) 

Duplex unit PD-30: 560 x 566 x 251 mm (W x D x H) 

223/s" x 22 1 /4" x 97/s" (W x D x H) 
Weight Printer main unit: 76.3 kg/167.86 lbs (including toner containers and oil roller unit) 

Paper feeder PF-30A: 19.1 kg/40.02 lbs 

Duplex unit PD-30: 22.1 kg/48.62 lbs 
Floor requirements 891x 560 mm (W x D) 

35 1 /ie" x 22Vi6" (W x D) 

Functions Self-diagnostics, sleep mode (energy saving) 

Power source 120 VAC, 60 Hz, 11. 5A 

220 - 240 V AC, 50/60 Hz, 5.8 A 
Power consumption Maximum: 1318 W (120 V), 1323 W (220 - 240 V) 

Printing: 41 2 W (120 V), 437 W (220 - 240 V) 

Ready: 1 77 W (1 20 V), 1 84 W (220 - 240 V) 

Sleep mode: 34 W/37 W* (1 20 V), 35 W/38 W* (220 - 240 V) 

Note (*): Network model 
Options Expansion DIMM (32/64/128 MB), memory card, network interface card IB-20/IB-21/ 

IB-21 E, hard disk unit, paper feeder PF-30A, duplex unit PD-30*, mailbox sorter SO- 

30, document finisher DF-31 , bulk stacker ST-30, barcode reader BC-1 , caster CA- 

31, caster kit CA-31B 

Note (*): Optional for FS-8000C/CN models. 



1-1-3 



FS-8000C/CD/CN 

1-1-2 Parts names and their functions 

(1) Printer 




© Side cover 

© Face-down tray 

© Cyan toner container 

© Magenta toner container 

© Yellow toner container 

© Paper stopper 

© Main charger unit 

® Black toner container 

© Waste toner bottle 

@ Primary transfer unit 

© Release lever 

@ Secondary transfer unit (transfer roller 

and separation charger unit) 
© Separation charger wire cleaner 
© Paper feed unit 
© Fuser unit 
© Front cover 
© Oil roller unit 



Figure 1-1-1 

1) Left paper guide 

5) Face-up tray 

§) MP tray 

i) Parallel interface connector 

^) Paper feeder/duplex unit side cover 

g) Serial interface connector 

3) Memory card slot 

:§) Network interface card* 1 slot [OPT1] 

:6) Hard disk unit* 2 or Network interface card* 2 slot [OPT2/HDD] 

i) Filter duct 

I Power switch 

|) Power cord connector 

5) Paper feeder* 3 or duplex unit* 4 



Standard-installed with FS-8000CN model only 

Option 

Standard-installed with FS-8000C model 

Standard-installed with FS-8000CD model 



Cautions: 

The power cord must keep plugged from power at least 30 minutes since the power switch is turned off. 
In case the power plug must be unplugged immediately after power-off for service purpose, pull out the 
paper feed unit so that the fuser unit is away from developers to avoid toner lumping due to the heat from 
the fuser unit. 



1-1-4 



FS-8000C/CD/CN 



(2) Operation panel 



© © © ® 



D © 



cy 

GO 

On 



DATA ATTENTION 



Ready 

PAR A4 PLAIN 



INTERFACE SIZE TYPE 





® @© © 



® 



Figure 1-1-2 



© Go key (GO) 

© Cancel key (CANCEL) 

© Menu keys (MENU) 

Enter key (ENTER) 

© Arrow keys 

© Ready indicator (READY) 

© Data indicator (DATA) 

© Attention indicator (ATTENTION) 

® Message display 

© Interface indicator (INTERFACE) 

© Paper size indicator (SIZE) 

© Paper type indicator (TYPE) 



1-1-5 



FS-8000C/CD/CN 

1-1-3 Cross section view 



® © ® © © ® 




Figure 1-1-3 Cross section view 



© MP tray unit 
(D Paper feed unit 

(3) Laser scanner unit 

(4) Main charger unit 

(5) Drum unit 

© Yellow developer and yellow toner container 

® Magenta developer and magenta toner container 

® Cyan developer and cyan toner container 

(9) Black developer 

® Black toner container 

© Primary transfer unit 

© Cleaning brush unit 

© Secondary transfer unit 

© Fuser unit 

© Face-down unit 



1-1-6 



CONTENTS 
1-2 Handling Precautions 

1-2-1 Drum 1-2-2 

1-2-2 Developer and toner container 1-2-2 

1-2-3 Installation environment 1-2-2 



FS-8000C/CD/CN 

1-2-1 Drum 

Note the following when handling or storing the drum. 

• Keep the drum at an ambient temperature between -20°C/-4°F and 40°C/104°F and at a relative 
humidity not higher than 85 % RH. Avoid abrupt changes in temperature and humidity. 

• Avoid exposure to any substance which is harmful to or may affect the quality of the drum. 

• Do not touch the drum surface with any object. Should it be touched by hands or stained with oil, clean it. 

1-2-2 Developer and toner container 

Store the developer and toner container in a cool, dark place. Avoid direct light and high humidity. 

1-2-3 Installation environment 

1 . Temperature: 1 - 32.5°C/50 - 90.5°F 

2. Humidity: 15-80%RH 

3. Power supply: 1 20 V AC ±1 %, 1 1 .5 A 

220 - 240 V AC 1 %, 5.8 A 

4. Power source frequency: 50 Hz ±0.2 %/60 Hz ±0.2 % 

5. Installation location 

• Avoid direct sunlight or bright lighting. 

• Avoid extremes of temperature and humidity, abrupt ambient temperature changes, and hot or cold air directed onto 
the machine. 

• Avoid dust and vibration. 

• Choose a surface capable of supporting the weight of the machine. 

• Place the machine on a level surface (maximum allowance inclination: 1° ). 

• Avoid air-borne substances that may adversely affect the machine or degrade the photoconductor, such as 
mercury, acidic of alkaline vapors, inorganic gasses, NOx, SOx gases, and chlorine-based organic solvents. 

• Select a room with good ventilation. 

6. Allow sufficient access for proper operation and maintenance of the machine. 
Machine front: 600 mm/23 5 /8" Machine rear: 300 mm/1 1 13 /i6" 

Machine right: 500 mm/19 11 /i6" Machine left: 500 mm/19 11 /i6" 




a: 590 mm/237/' 

b: 585 mm/23 5 /, 6 " 
c: 680 mm26 3 / 4 " 
d: 429 mm/167" 



e: 560 mm/227/ 
f: 566 mm/227 4 " 
g: 251 mm/97 " 



Figure 1-2-1 Installation dimensions 



1-2-2 



CONTENTS 
1-3 Installation 

1-3-1 Unpacking and installation 1-3-2 

(1) Installation procedure 1-3-2 



FS-8000C/CD/CN 

1-3-1 Unpacking and installation 

(1) Installation procedure 



Start 



Unpacking 



Removing the tape 



Attaching the casters (purchased separately) 



Joining the printer and the paper feeder(s) 



Attaching the accessories 



Placing the printer in a proper location 



Installing the fuser unit and the oil roller unit 



Securing the heat and press/heat rollers 



Installing the secondary transfer unit 



Installing the waste toner bottle 



Installing the four developers 



Installing the toner containers 



Making connectors to the computer 



Printing a status page for test 



Completion of the machine installation 



1-3-2 



LS-8000C/CD/CN 



Unpack. 



Printer 




Figure 1-3-1 Unpacking (Printer) 



Printer 


® Black toner container 


© Documents (Installation guide, 


© Secondary transfer unit 


Quick reference guide, and 


© Oil roller unit 


CD-ROM) 


© Fuser unit 


© Cyan developer 


© Waste toner bottles 


Magenta developer 


© Power cord 


© Yellow developer 


© Filter duct 


© Black developer 


©Joint jig 


© Cyan toner container 


© Quick reference guide holder 


® Magenta toner container 


© Screws (Two) 


© Yellow toner container 





Warning: 

Lift the printer by more than two persons. The printer weighs approx. 76 kg. 



1-3-3 



FS-8000C/CD/CN 

Paper feeder (or duplex unit) 




Figure 1-3-2 Unpacking the paper feeder (or duplex unit) 



© Paper feeder (or duplex unit) 

© Installation manual 

® Paper size indication plate 

©Pads 

© Packing case 



Warning: 

The paper feeder (duplex unit) weighs approx.19 kg (22 kg). 



1-3-4 



LS-8000C/CD/CN 



Removing the tape 



1 . Draw the upper and lower paper cassettes and 
then remove the transportation tape. 




Figure 1-3-3 



1-3-5 



FS-8000C/CD/CN 

Attaching the casters (purchased separately) 



Caution 

To prevent the printer from tipping over because 
of weight of the printer and the upper paper 
drawers, the CA-31 B caster kit must be installed 
at the bottom-most paper feeder, when an 
optional paper feeder or duplex unit is installed 
with the printer. 

Caution labels have been attached to the paper 
feeder and the duplex unit. 



1 . Stand the paper feeder with the rear side on the 
floor. 

2. Remove each one screw to remove four feet. 

3. Install two optional caster bases onto the bottom 
of the paper feeder by using four screws for 
each. Be sure to face the longer end towards the 
front of the paper feeder. 



Caution label 



Screw 



Caster base 



Screws 



A CAUTION 

To prevent the FS-8000C 
printer from tipping over, 
the optional CA-31 B caster 
kit must be installed when 
the printer is installed 
with more than one paper 
feeder or a duplex unit. 




Caster base 



Figure 1-3-4 



Joining the printer and paper feeder(s) 



1 . Using the topple-resistant bracket (supplied with 
the caster kit CA-31 B), stack and join the bottom 
and middle paper feeders. 

2. Place the printer on top of the paper feeders (by 
more than two persons). 



Topple-resistant 
bracket 




Figure 1-3-5 



1-3-6 



LS-8000C/CD/CN 



3. Join the printer and topmost paper feeder with 
the joint jig provided using one screw. 

Warning: 

Lift the printer by more than two persons. The printer 
weighs approx. 76 kg. 




Figure 1-3-6 



Attaching the accessories 



1. Install the filter duct. 

2. Install the quick reference guide holder. Peel the 
protective tape off from the holder when attaching 
the holder. 



Quick reference guide holder 




Filter duct 



Figure 1-3-7 



1-3-7 



FS-8000C/CD/CN 

Placing the printer in a proper location 



1 . Place the paper feeder in a proper location. 

2. Lock the stopper for each caster and turn the 
height adjuster clockwise until the adjuster 
reaches the floor. This fixes the printer in place. 



Installing the fuser unit and the oil roller unit 



1 . Open the front cover. 

2. Pull out thoroughly the paper feed unit. 



Left: 50 cm 
(19-11/16 inches) 



I Rear 
(11-1 



L 



:30cm 
3/16 inches) 

ZL 



Front: 60cm 
(23-5/8 inches) 



I 



Right: 50cm 
(19-11/16 inches) 




Figure 1-3-8 




Front cover 



Figure 1-3-9 



1-3-8 



LS-8000C/CD/CN 



3. Open the left paper guide by pulling down the 
green-colored handle. 

4. Insert the fuser unit onto the paper feed unit. 

5. Secure the fuser unit with the screw. 



Fuser unit 



Screw 




Left paper guide 



Figure 1-3-10 



6. Remove the oil seal tapes at both ends of the oil 
roller unit. 

7. Take out the oil roller unit from the case. 



Oil seal tape oil seal tape 

Oil roller unit 





roller unit 



Case 



Figure 1-3-11 



1-3-9 



FS-8000C/CD/CN 



8. Install the oil roller unit onto the fuser unit until it 
is locked at both ends. 




Figure 1-3-12 



Securing the heat and press/heat rollers 



The pressure between heat roller and press/heat 
roller are kept released during transportation. Secure 
the pressure by the following: 

1 . Open the fuser top cover by lowering the lock 
buttons. 

2. Firmly tighten two screws until they stop. 




Screws 



Fuser top cover 



Figure 1-3-13 



1-3-10 



LS-8000C/CD/CN 



Installing the secondary transfer unit 



1 . Connect the tab from the paper feed unit to the 
terminal of the secondary transfer unit. 

2. Fit the fulcrums of secondary transfer unit on the 
bushes and then put it on the paper feed unit. 



Secondary transfer unit 




Figure 1-3-14 



Installing the waste toner bottle 



1 . Install the waste toner bottle. 




Waste toner bottle 



Figure 1-3-15 



1-3-11 



FS-8000C/CD/CN 



Installing the four developers 



1 . Remove one screw. 

2. Remove the lock pin from the primary transer 
unit. 

3. Release the (green-colored) lock lever. 

4. Draw the primary transfer until it stops. 

5. While pushing the gray lever, pull out the 
primary transfer unit. 

6. Pull out the primary transfer unit from the 
printer. Make sure not to scratch the round 
surface, especially at its bottom. 

7. Close the paper feed unit. 



8. Unscrew screws A and B. Free the two 
stoppers. 

9. Pull out the process frame. 




Primary transfer unit 



Figure 1-3-16 




Figure 1-3-17 



1-3-12 



LS-8000C/CD/CN 



1 0. Detach the two tags. 

1 1 . Remove the front and rear stoppers. 




Figure 1-3-18 



1-3-13 



FS-8000C/CD/CN 



12. Peel off the tapes and then remove the 
protective pad from each developer unit. 



Developer 




Protective pad 



Figure 1-3-19 



1-3-14 



LS-8000C/CD/CN 



13. Set each developer in its corresponding position 
in the process frame. 



Process frame 




Figure 1-3-20 



1-3-15 



FS-8000C/CD/CN 



14. Close the process frame and then lock the two 
stoppers. 

15. Fix two screws A first, and then fix two B screws. 



1 6. Pull out the paper feed unit. 

17. Replace the primary transfer unit. 

18. Close the lock lever. 

19. Close the paper feed unit. 

20. Secure the screw. 




Figure 1-3-21 



Primary transfer unit 




Paper feed unit 



Figure 1-3-22 



1-3-16 



LS-8000C/CD/CN 



Installing the toner containers 



1 . Shake each toner container well before use. 

2. Install the four toner containers into their 
corresponding developers. 

3. Close the front cover. 




Front cover 



Making connections to the computer 



1 . Connect the printer cable to the printer parallel 
connector. Connect the other end to the 
computer. 

NOTE: To install the network interface card for 
connecting the printer to the network, refer to the 
documentation supplied with the network 
interface card. (Standard-installed with FS- 
8000CN model only.) 

2. Connect the power cord to the printer power inlet. 



Figure 1-3-23 



Parallel interface connector 




Network interface card 



Figure 1-3-24 



1-3-17 



FS-8000C/CD/CN 



Printing a status page for test 



1 . Add paper in the paper cassette. 

2. Connect the power cord to the power out 
let. 

3. Turn on the printer power switch, and then 
wait until [Print Ready] is displayed. 

4. Press the MENU key on the operation 
panel. 

5. Press the v key repeatedly until [Print 
Status page] is displayed. 

6. Press the ENTER key twice. A status page 
is printed. 



Completion of the machine installation 



1-3-18 



CONTENTS 
1-4 Service Mode and Maintenance 

1-4-1 Service mode 1-4-2 

(1) Executing service mode 1-4-2 

(2) Contents of service mode items 1-4-3 

1-4-2 Maintenance 1-4-11 

(1) Replacing the toner container 1-4-11 

(2) Cleaning the main charger unit 1-4-13 

(3) Cleaning the printer 1-4-16 

(4) Replacing the oil roller unit 1-4-20 

(5) Cleaning the heat and press/heat rollers of paper dust 1-4-21 

(6) Cleaning the fuser unit 1-4-22 

1-4-3 Downloading printer firmware for upgrade 1-4-23 

(1) Format for the firmware files 1-4-23 

(2) Downloading firmware via the parallel interface 1-4-24 

(3) Downloading firmware using the memory card 1-4-25 

(4) Downloading message data 1-4-27 



FS-8000C/CD/CN 

1-4-1 Service mode 

The printer is equipped with the service mode that can be accessed in the menu system. The service mode is intended 
for use by the service person for maintenance and service for the items explained in the following sections. 

(1) Executing service mode 



Message display 



Ready 

PAR A4 PLAIN 



© Press the MENU key. 



Print 
Menu Map 



© Press the Vor Akey several times 
until [Others >] is displayed. 



Print 
Status page 



Others 



To print a status page for the user information. 
See the operation guide for details. 



__ >MSG Language 
English 



© Press the > key. 



© Press the Vor Akey several times 
until [>Service >] is displayed. 



>Service 



© Press the > key. 



Service mode items 















>>Print 






i 


Status Page 












>>Print 
Test Page 1 








To scroll 




>>Print 
Test Page 2 


I these items, 






press the 
: Vor Akey 




>>Drum 






! repeatedly. 




>>Maintenance 

[A] 












>>Maintenance 

[B] 






, 






>>Mainte nance 

[C] 






















>>Maintenance 

[D] 








i 









To print a status page for service purpose. 
See page 1-4-3. 

To print a test page, mode 1 . 
See page 1 -4-7. 

To print test pages, mode 2. 
See page 1-4-7. 

To performing a drum surface refreshing. 
See page 1 -4-8. 

To reset the counter after replacing maintenance kit A. 
See page 1-4-8. 

To reset the counter after replacing maintenance kit B. 
See page 1 -4-9. 

To reset the counter after replacing maintenance kit C. 
See page 1-4-9. 

_To reset the counter after replacing maintenance kit D. 
See page 1 -4-1 0. Note: For countries other than European 
countries and Australia. 



1-4-2 



FS-8000C/CD/CN 



(2) Contents of service mode items 



Service items 



Description 



>>Print 
Status Page 



Printing a status page for service purpose 

Description 

Service information on the status page include various information and settings for the printer, 
including service statistics, etc. 

Purpose 

To understand the machine environments and general settings. 

Procedure 

Enter the service mode [»Printing Status Page]. 

Press the ENTER key. The status page is printed. (See the figure below.) 

Completion 



Controller firmware version* 



Released date of the firmware 



7 PAGE PRINTER STATUS PAGE 



| Software version: 



Released: l/Jun/200l| 




Service information 



[A0O8] [CI] [7.12] [01 
/P0O/S00/FQO/NO0/DlO:D 
70020/0020/1061/0311/ 



al page 9762 



0/ 0/ 0/ 0/ 



AAA AAA A/ 



/ AAAAAAA / AAAAAAA / AAA AAA A , 



/AAAAABFGBJ7AAAAABFJDB/AAAAABGCED/AAAAABG 
/AAAAAAA/AAAAAAA/AAAAAAA/AAAAAAA/AAAAAAA/AAAAAAA/. 
/AAAAAAA/AAAAAAA/AAAAAAA/AAAAAAA/ 

/AAAAAAA/AAAAAAA/AAAAAAA/AAAAAAA/AAAAAAA/AAAAAAA/ 
/ AAAAAAA / AAAAAAA/ A A A A A A A /AAAAAAA/AAAAAAA/ AAAAAAA / 



32/ [00 3 7-0003] / 1/19/ 60 



/20i"Ai209_/9_20A02G/202;";2001/019:'0;";00/0;";::0;";::0;";/2:'. 2020/202 ::2;";20/ 



SPD1 : 02030405080 90AOBQC0: 
SPD1 :020 304O50809OAOB0C0: 
DN : G JC 1702075 SN: UVE 17 



Service information (See the next page.) 



Figure 1-4-1 



1-4-3 



FS-8000C/CD/CN 



Service items 



Description 



Detail of service information 



Service information 



Total page 9762 
© 



[ A008 ] [ CI ] [ 7.12 ] [ 01/01 ] 

© © © © 

/ POO / S00 / F00 / NOP /DIP :DM0301 .DAN/AA 

© © © © " © © 

/ 0020/0020/1061/0811 / 0/ 0/ 0/ 0/ 0/ 0/ 0/ / 

© © 

/ AAADCFE/AAADCFE / 

@ 

/ AAADCFE /AAAGFAI /AAAAAAA/AAAAAAA/AAAAAAA/AAAAAAA/AAAAAAA / 

© 

/ AAAAAAA/AAAAAAA/AAAAAAA / 

© 

/AADBABG/AADBABG/AAAJHGC /AAADCFE /AAADCFE /AAADCFE /AAADCFE /AAAJHGC/AAAJHGC/AADBABG/ 

© 

/ AAADCFE /AAAAABFGBJ/AAAAABFJDB/AAAAABGCED/AAAAABGIGI / 

© "' ' © 

/ AAAA AA A /AAAAAAA/AAAAAAA/AAAAAAA/AAAAAAA/AAAAAAA/AAAAAAA/AAAAAAA/ 



/AAAAAAA/AAAAAAA/AAAAAAA/AAAAAAA/ 



© 



/AAAAAAA/AAAAAAA/AAAAAAA/AAAAAAA/AAAAAAA/AAAAAAA/ 

© 

/AAAAAAA/AAAAAAA/AAAAAAA/AAAAAAA/AAAAAAA/AAAAAAA/ 



/RS2/ [ 0007-0003 ] /1/19/60 
@ © © @ © 

/AF.A/AF.B/AF.C/AF.D/4 3/4E/4 8/4 0/FF/FF/FF/FF/ 



/2 832 91 /9120A020/202020 91/ 91 900000/00000000/20202020/20202020/ 

® 

SPD1:02 030405080 90AOBOCODOF101112131415161718191A1B1C1D1E1F202122235E 

@ 

SPD1: 02 030405080 90A0B0C0D0F1011121314151 617181 91A1B1C1D1E1F202122235E 

® 

DN:GJC1702075 SN : UVE1700190 



Item 



Description 



© Engine controller PWB flash ROM Information 



[ROM version] 



(D Operation panel PWB mask ROM information 



[ROM version] 



® Boot ROM Information 



[ROM version] 



Software jumper switch information 
(Hexadecimal) 



First byte 

Bit 0: 1 : (fixed) 

Bit 1 : 0: Overseas 1 : Domestic (Japan) 

Bit 2: (Not used) 

Bit 3: (Not used) 

Bit 4: 0: Kyocera 1: OEM 

Bit 5: 0: For Europe 1: for U.S. 

Bit 6: 0: Non MICR mode 1:MICRmode 

Bit 7: 0: Kyocera 1 : Kyocera Mita 

Second byte 

OEM information: Displayed in OEM mode only. 



1-4-4 



FS-8000C/CD/CN 



Service items 



Description 



Item 



Description 



© Total page counter 



© Parallel I/O information 



® Serial I/O error code 



00: Normal 



BitO 
Bit 1 
Bit 2 



Overrun error 
Framing error 
Parity error 



® Operation panel key lock status 
(Displayed only when locked) 

® NVRAM error code 

(Displays only when error occurred) 



© NVRAM downloading status 



Partial lock 
Full lock 

ID error 
Version error 
Checksum error 
NVRAM crush error 



00: None downloaded 

bit 0: Font data 

bit 1 : Host data 

bit 2: Macro data 

bit 3: Program data 

bit 4: Operation panel message data (File name displayed) 

bit 5: OEM data 

bit 6: Reserved 

bit 7: Error occurred 



© Engine error information 



© Printable area information 



/Top offset / Left offset /Page length /Page width 



© Left offset 



MP tray/Cassette 1 /Cassette 2 /Cassette 3 /Cassette 4 / 
Cassette 5 /Cassette 6 /Duplexer 



© Page counter according to paper size 



/A3 /A4 / 



© Page counter according to paper source 



/Cassette 1 /Cassette 2 /Cassette 3 /Cassette 4 
/Cassette 5 /Cassette 6 /Duplexer / 



© Page counter according to paper output 



/Mailbox sorter /Bulk stacker /Document finisher / 



© Life counter 



/Drum unit /Primary transfer unit /Secondary transfer unit 
/Cyan developer /Magenta developer/Yellow developer / 
Black developer /Fuser unit /Oil roller unit /Main charger 
unit 



© Color page counter 



© Pixel counter 



/Cyan /Magenta /Yellow /Black / 



2r) Maintenance kit A counter 



Four occurrences (from the left to the right) of image 
counts at which maintenance kit A was replaced. The 
right-most code indicates the current count. 



21) Maintenance kit B counter 



Four occurrences (from the left to the right) of page 
counts at which maintenance kit B was replaced. The 
right-most code indicates the current count. 



1 Maintenance kit C counter 



Four occurrences (from the left to the right) of image 
counts at which maintenance kit C was replaced. The 
right-most code indicates the current count. 



© Maintenance kit D counter 



Twelve occurrences (from the left to the right, top to 
bottom) of page counts at which maintenance kit D was 
replaced. The right-bottom code indicates the current 
count. Note: Maintenance kit D is for countries other than 
European and Australia. 



1-4-5 



FS-8000C/CD/CN 



Service items 



Description 



Item 



Description 



§) Serial interface information 
g§) Option unit information 



RS2: RS-232C 



rst 2 byte 

tO: MP tray 
1 1 : Cassette 1 
t 2: Cassette 2 
t 3: Cassette 3 
1 4: Cassette 4 
t 5: Cassette 5 
t 6: Cassette 6 
t 7: Duplex unit 
t 8 to 15: Reserved 



Second 2 byte 



bitO 
bit 1 

bit 2 
bit 3 
bit 4 
bit 5 
bit 6 
bit 7 



Face- up tray 
Face-down tray 
Reserved 
Reserved 
Document finisher 
Mailbox sorter 
Reserved 
Bulk stacker 



bit 8 to 15: Reserved 



% Operation panel message language 
g) Current temperature 



PMSG command settings (decimal) 

to 100 °C (in 1 °C increment, "-"= Humidity/temperature 
sensor is abnormal.) 



@ Current humidity 



50 to 90 % RH (in 2 % increment) 



§) Average print density (%) 



/Cyan /Magenta /Yellow /Black 



Qo) Color calibration result 



Last 



Previous 



/Cyan /Magenta /Yellow /Black /Cyan /Magenta /Yellow /Black / 



® Media type attributes 



Media type 1 to 28 (See table below) 



@ SPD information (slot 1) 



® SPD information (slot 2) 



(3) Drum serial number 



(35) Printer serial number 



Media type attributes 



No. 



1 
2 
3 
4 
5 
6 
7 
8 
9 
10 
11 
12 
13 
14 



Media type 



Plain 

Transparency 

Preprinted 

Labels 

Bond 

Recycled 

Vellum 

Rough 

Letter head 

Color 

Prepunched 
Envelope 
Cardstock 
Coated 



Paper feed 
source 

Paper 

MP ^ cSes 
1 to 6 



Transfer 



Y 
Y 
Y 
Y 
Y 
Y 
Y 
Y 

~Y 
Y 

^r 

~Y~ 



Y 
N 
Y 
N 
N 
Y 
Y 
Y 

^r 

Y 
~Y~ 

~N~ 



Attributes 
(default) 



s F p U e S e e d **« 



No. Media type 



15-20 Reserved 



21 Custom 1 



22 Custom 2 



23 Custom 3 



24 Custom 4 



25 Custom 5 



26 Custom 6 



27 Custom 7 



28 Custom 8 



Paper feed 
source 



MP tray 



Paper 

feeders 

cassettes 

1 to 6 



Attributes 
(default) 



Transfer l^ttli Duplex 



speed 



Shaded area: Not changeable. 



Paper feed source attribute: Y= Yes N= No 

Media type attributes: 

[Transfer] [Fuser speed] [Duplex] 

0= Normal 0=1/4 0= Enable 

1= Thick 1=1/2 1= Disable 

3= Extra thick 2= Normal 



1-4-6 



FS-8000C/CD/CN 



Service items 



Description 



>>Printing 
Test Page 1 



Printing a test page, mode 1 

Description 

Printing a test page that has four colors printed on a sheet. 

Purpose 

To check the activation of the developers. 

Start 

Enter the service mode [»Printing Test Page 1]. 
Press the ENTER key. The test page is printed. 
Completion 



Cyan 

Magenta 

Yellow 

Black 




Figure 1-4-2 



>>Printing 
Test Page 2 



Printing test pages, mode 2 

Description 

Prints four sheets in individual colors. 

Purpose 

To check the activation of the developers. 

Start 

Enter the service mode [»Printing Test Page 2]. 
Press the ENTER key. Four test pages are printed. 
Completion 




Cyan 



Magenta Yellow 

Figure 1-4-3 




Black 



1-4-7 



FS-8000C/CD/CN 



Service items 



Description 



>>Drum 



Drum surface refreshing 

Description 

The drum rotates for approximately 5 minutes without printing operation. 

Purpose 

To clean the drum surface when an image problem occurs. 

Start 

Enter the service mode [»Drum]. 

Press the ENTER key. The drum surface refreshing starts and automatically finishes. 

Completion 



»Maintenance 
[A] 



Counter reset for the maintenance kit A 

Description 

The "Install MK [A]" message means that maintenance kit A should be replaced at every 
400,000 images of printing. The interval counter must be reset using this service item. 

MK-800A Maintenance kit A includes the following units: 

• Drum unit: DK-800 DRUM UNIT [Part No.: 5PLPXARAPKX] 
(including MC-800 MAIN CHARGER ASSY and FILTER KIT) 

• Primary transfer unit: TR-800P PRI TRANSFER UNIT [Part No.: 5PLPXASAPKX] 
(including CLEANER ASSY) 

• Secondary transfer unit: TR-800S SEC TRANSFER UNIT [Part No.: 5PLPXATAPKX] 

Purpose 

To reset the life counter for the components included in maintenance kit A. 

Start 

Replace the drum unit (See page 1-6-13). 

Replace the primary transfer unit (See page 1-6-15). 

Replace the secondary transfer unit (See page 1-6-21). 

Replace the ozone filter (See page 1-6-45). 

Enter the service mode (»Maintenance [A]). 

Press the ENTER key. The counter for each component is reset immediately. 

Completion 

Note: 

Occurrences of resetting the maintenance kits are recorded on the service status page in 
number of pages or images at which the maintenance kit was replaced (See page 1-4-5). 

This may be used to determine the possibility that the counter was erromeously or 
unintentionally reset. 



1-4-8 



FS-8000C/CD/CN 



Service items 



Description 



»Maintenance 

[B] 



Counter reset for the maintenance kit B 

Description 

The "Install MK [B]" message means that maintenance kit B should be replaced together at 
every 200,000 pages of printing. The interval counter must be reset using this service item. 

MK-801B* 1 /MK-800B* 2 Maintenance kit B includes the following units: 

• Black developer: DV-800K DEVELOPER BLACK [Part No.: 5PLPXAXAPKX] 

• Fuser unit (including oil unit): FK-800(E) FUSER UNIT (E) [Part No.: 5PLPXAUAPKE] 

FK-800(U) FUSER UNIT (U) [Part No.: 5PLPXAVAAMA] 

• Separation charger unit: SC-800 SEPARATE CHARGER [Part No.: 5PLPXBRAPKX] 

* 1 : For European countries and Australia. * 2 : For U.S., Canada, and Asian countries. (The 
separation charger unit is not included. For details on the maintenance kits, see page 2-4-3.) 

Purpose 

To reset the life counter for the components included in maintenance kit B. 

Start 

Replace the black developer (See page 1 -6-1 6). 

Replace the fuser unit with oil roller unit (See page 1-6-24). 

Replace the separation charger unit [European countries and Australia only] (See page 1-6- 
22). 

Enter the service mode (»Maintenance [B]). 

Press the ENTER key. The counter for each component is reset immediately. 

Completion 

Note: 

Occurrences of resetting the maintenance kits are recorded on the service status page in 
number of pages or images at which the maintenance kit was replaced (See page 1-4-5). 

This may be used to determine the possibility that the counter was erromeously or 
unintentionally reset. 



>>Maintenance 

[C] 



Counter reset for the maintenance kit C 

Description 

The "Install MK [C]" message means that maintenance kit C should be replaced together at 
every 200,000 images of printing. The interval counter must be reset using this service item. 

MK-800C Maintenance kit C 

• Yellow developer: DV-800Y DEVELOPER YELLOW [Part No.: 5PLPXBAAPKX] 

• Magenta developer: DV-800M DEVELOPER MAGENTA [Part No.: 5PLPXAZAPKX] 

• Cyan developer: DV-800C DEVELOPER CYAN [Part No.: 5PLPAYAPKX] 

Purpose 

To reset the life counter for the components included in maintenance kit C. 

Start 

Replace the cyan, magenta, and yellow developers (See page 1-6-16). 

Enter the service mode (»Maintenance [C]). 

Press the ENTER key. The counter for each component is reset immediately. 

Completion 

Note: 

Occurrences of resetting the maintenance kits are recorded on the service status page in 
number of pages or images at which the maintenance kit was replaced (See page 1-4-5). 

This may be used to determine the possibility that the counter was erromeously or 
unintentionally reset. 



1-4-9 



FS-8000C/CD/CN 



Service items 



Description 



>>Maintenance 

[D] 



Counter reset for the maintenance kit D 

The following procedure is not necessary for European countries and Australia. 
Description 

The "Install MK [D]" message means that maintenance kit D (Separation charger unit) should 
be replaced together at every 100,000 pages of printing. The interval counter must be reset 
using this service item. 

MK-800D Maintenance kit D 

• Separation charger: (MK-800D)SC-800 SEPARATE CHARGER [Part No.: 5PLPXBRAPKX] 

Purpose 

To reset the life counter for the separation charger unit. 

Start 

Pull the projection of the separation charger unit and then remove it from the secondary 
transfer unit. 

Place the new separation charger unit with its cleaning knob inserted in the opening at the 

Separation charger unit 




Secondary transfer unit 



Figure 1-4-4 



front of the secondary transfer unit, then, push the rear end of the separation charger unit so 
that it is fully seated in the secondary transfer unit. 



Separation charger unit 




Secondary transfer unit 



Cleaning knob 



Figure 1-4-5 

Enter the service mode (»Maintenance [D]). Press the ENTER key. The counter for the 
separation charger unit is reset immediately. 

Completion 

Note: 

Occurrences of resetting the maintenance kits are recorded on the service status page in 
number of pages or images at which the maintenance kit was replaced (See page 1-4-5). 

This may be used to determine the possibility that the counter was erromeously or 
unintentionally reset. 



1-4-10 



FS-8000C/CD/CN 

1-4-2 Maintenance 

(1) Replacing the toner container 

The life of the toner containers depends on the amount of toner required to accomplish your printing jobs. When 5 % 
coverage (a typical business document) of individual toner colors is assumed for A4 or letter size paper in landscape 
orientation, without using draft (EcoPrint [monochrome printing only]) mode: 

• The TK-82K black toner container lasts an average of 25,000 monochrome pages. 

• Each of the TK-82C cyan, TK-82M magenta, and TK-82Y yellow toner containers lasts an average of 10,000 color 
images. 

The toner containers packed with the new printer are starter toner containers. The black starter toner container lasts an 
average of 12,500 monochrome pages. Each of the cyan, magenta, and yellow starter toner containers lasts an average 
of 5,000 color images. 



Procedure 

1 . Open the front cover. 

2. While pushing down the lever (blue-colored) 
at the front of the toner container to unlock 
the container, pull the toner container out. 



Black 




Figure 1-4-6 



1-4-11 



FS-8000C/CD/CN 



3. Take the new toner container out of the toner 
kit. To loosen and redistribute the toner 
inside, hold the container and rotate the 
container back and forth at least 10 times. 

4. Insert the new toner container all the way in. 
The container is locked automatically when it 
is properly seated. 




Figure 1-4-7 



5. Tilt the lever to the right and then remove the 
waste toner bottle. 

6. Install the new waste toner bottle (Supplied in 
the new toner kit). 

Cautions: 

• Do not cap the opening on the new waste 
toner bottle. 



Waste toner bottle 



Lever 




Figure 1-4-8 



1-4-12 



FS-8000C/CD/CN 

(2) Cleaning the main charger unit 

The main charger unit needs to be cleaned periodically as it gets contaminated with dioxide after a long usage. The main 
charger is comprised of two main parts — the wire and the grid — both of which should be cleaned separately as 
instructed below. 

Follow the procedure below to cleaning the main charger unit: 



Procedure 

• Main charger wire 

1 . Open the front cover. 

2. Grasp the cleaning knob (green-colored). 
Gently pull the cleaning knob out and push it 
back in. Repeat this several times. 




Cleaning knob 



Figure 1-4-9 



1-4-13 



FS-8000C/CD/CN 



Main charger grid 

1 . Take the grid cleaner out of the toner kit. Take 

the grid cleaner out of the protective bag and 

remove the cap. 




Grid cleaner 



Figure 1-4-10 



2. Attach the grid cleaner to the printer with the 
pad facing up. 




Grid cleaner 



Figure 1-4-11 



3. Push the main charger unit release lever 
upward. 

4. Slightly lift the main charger unit, and gently 
pull the gray-colored main charger handle out 
and push it back in. 

5. Repeat this several times. These movements 
clean the grid. 

6. After cleaning is finished, remove the grid 
cleaner from the printer and discard it. 

7. Close the front cover. 

Cautions: 

• The grid cleaner cannot be reused. 




Figure 1-4-12 



1-4-14 



FS-8000C/CD/CN 



• Main charger shield 

1 . Remove the main charger unit from the drum 
unit. 

2. Detach the main charger grid from the hooks. 

3. Draw the main charger wire cleaner out until 
it stops. 

4. Clean the inside of the main charger shield 
and refit the all parts. 



Main charger grid 



Hook 




Main charger 
wire cleaner 



Main charger shield 



Figure 1-4-13 



1-4-15 



FS-8000C/CD/CN 



(3) Cleaning the printer 

Follow the procedure below to clean the separation charger unit (wire), upper and lower registration rollers, conveying 
belts, and the registration sensor. 

Procedure 

• Separation charger wire 

1 . Grasping the cleaning knob of the separation 
charger, gently pull the knob out and push it 
back in. 

2. Repeat this several times. This cleans the 
separation charger wires inside. 

Separation charger unit 




Cleaning knob 



Figure 1-4-14 



Registration rollers 

1 . Clean the upper (metal) and lower (rubber) 

registration rollers using the cleaning cloth. 

Rotate the rollers by rotating the coupling 

gear (black) at the rear end of the upper 

registration roller. 



Coupling gear Upper registration roller 

(black) (metal) 



Lower registration roller 




Cleaning cloth 



Figure 1-4-15 



1-4-16 



FS-8000C/CD/CN 



Conveying belts 

1. Clean the conveying belts (rubber) using the 
cleaning cloth. 




Cleaning cloth 



Figure 1-4-16 



■ Registration sensor 

1 . Remove the two screws and detach the 
registration sensor plate. 

2. Clean the sensing face of registration sensor 
using the cleaning cloth. 



Screw 



Registration sensor plate 




Screw 



Figure 1-4-17 



1-4-17 



FS-8000C/CD/CN 

• Primary transfer unit 

1 . Remove the primary transfer unit and then 
remove the cleaning brush unit (See page 1- 
6-15). 

2. Clean the platform for the cleaning brush unit 
(® in the figure). 




Primary transfer unit 



3. Clean around the waste toner exit of the 
cleaning brush unit. 



Figure 1-4-18 




Cleaning brush unit 



Figure 1-4-19 



1-4-18 



FS-8000C/CD/CN 



■ Drum unit 

1 . Remove the drum unit (See page 1 -6-14). 

2. Unlatch the three latches and then remove 
the drum unit rear cover. 



Latch 




Latch 



Drum unit rear cover 



Latch 



Figure 1-4-20 



3. Clean the gear tooth of drum R flange. 

4. Clean Idle gear Z1 7H Z22H, drum gear Z1 4H 
Z28H, CLN gear Z1 7, and shafts and then 
grease up them. 



Shaft 




Idle gear 
Z17HZ22H 




CLN gear Z1 

Drum gear Z14HZ28H 



Drum R flange 



Figure 1-4-21 



1-4-19 



FS-8000C/CD/CN 

(4) Replacing the oil roller unit 

Follow the procedure below to replace the oil roller unit (OL-82 oil kit). 



Procedure 

1 . Remove the old oil roller unit by unlatching 
the latches of both ends. 




Figure 1-4-22 



2. Remove the sealing tapes at both ends. 

3. Remove the cover from the oil roller unit. 

4. Install the oil roller unit onto the fuser unit until 
it is locked. 



Oil sealing tapes 




Oil roller unit 



Figure 1-4-23 



1-4-20 



FS-8000C/CD/CN 
(5) Cleaning the heat and press/heat rollers of paper dust 

Paper dust may accumulate on the heat and press/heat rollers after a prolonged use of the printer, resulting paper dust 
on transparencies or one side of double-side-printed paper. To clean the heat and press/heat rollers of paper dust, 
perform the following procedure. 

Procedure 

1 . Set the MP tray mode to [First]. 

2. Set the paper size to [A4] or [Letter], and media type to [Plain] for the current paper cassette. 

3. Load a sheet of A4 or Letter size paper on the MP tray in lengthwise direction. 

4. At the DOS-prompt of the PC, send the following Prescribe command sequence (This prints solid black over an A4 
page.): 

echo !R! unit c;map 0,0;pat l;blk 20, 28 . 7; page; exit, e; >prn 

5. At a page of solid black is printed, reload it on the MP tray with the printed side down. 

6. Print a status page. 

If the symptom still persists, try repeating the above procedure for several times. 



1 -4-21 



FS-8000C/CD/CN 

(6) Cleaning the fuser unit 

Follow the procedure below to clean the paper chute, upper and lower separators, and exit rollers. 



Cautions: 

• The fuser unit is hot after the printer was 
running. Wait until it cools down. 

Procedure 

1 . Draw the paper feed unit. 

2. Open the left paper guide and fuser unit top 
cover. 

3. clean the paper chute, upper and lower 
separators, and exit rollers. 



Upper separator(s) 



Paper chute 



Fuser top cover 




Exit roller(s) 



Left paper guide 

Lower separator(s) 



Fuser unit 



Figure 1-4-24 



1 -4-22 



FS-8000C/CD/CN 



1-4-3 Downloading printer firmware for upgrade 



The system (program) and engine firmware that are stored in a system DIMM PWB and a flash ROM on the engine 

controller PWB are upgradable by downloading new firmware into these devices. Downloading can be made either by 

directly sending the new firmware from PC via the parallel interface or using a memory card that contains the new 

firmware. 

The message data for the operator panel display is also downloadable so that a new message language is appended for 

the operator panel. The message data should be downloaded directly from PC. 

(1) Format for the firmware files 

The file name for the firmware files is coded so that it implies the type, applicable product, and the version of the file. 
Refer to the example below: 



System firmware file name example 



w52vl2206.cmp 



1 compression 

- Version code: Version 122.06 
Machine code: FS-8000C/CD/CN (W52) 



Engine firmware file name example 



w52pmA008 .bin 



_i i . 1 1_ 



1 binary 

— Version code: Version A008 

ID code for engine firmware 

Machine code: FS-8000C/CD/CN (W52) 



Operator panel message data file name example 



dm5202 .spa 



_i i . 1 1_ 



- Language code 

Version code: Version 02 
— Machine code: FS-8000C/CD/CN (W52) 
ID code for operator panel massage data 



jpn: Japanese 

dan: Dutch 

swe: Swedish 

ita: Italian 

spa: Spanish 

por: Portuguese 

rus: Russian 

pol: Polish 

cze: Czech 



Table 1-4-1 



1 -4-23 



FS-8000C/CD/CN 

(2) Downloading firmware via the parallel interface 

To download the system or engine firmware using the parallel interface, use the procedure below. Note that you can 
download both the system and engine firmware at a time. 



— Connecting the parallel printer cable 



1 . Turn printer and PC power off. 

2. Connect the parallel printer cable between 
the PC and the printer. 



Downloading the firmware files 



Turn printer power on. 
Confirm Display © is displayed. 
At the DOS prompt, enter Command (§)■ 
Note that upgr' sys ' should be entered as 
upper case letters. 
Confirm Display ® is displayed. 
At the DOS prompt, enter Command @ so 
that the system firmware (ex. 
w52vi2206 . cmp) and the engine firmware 
(ex. W52pm008 .bin) are copied to the 
printer. 

Display © is displayed during 
downloading.When Display © is displayed 
to indicate downloading is finished, turn 
printer power off, then on. 
Confirm Display ® is displayed after warm- 
ing up. 



Confirming upgrading 



1 . Print a status page. (See page 1-4-2.) 

2. Check that the status page shows the new 
firmware version. 



Parallel 

interface connector 




Parallel printer cable 



To PC 



Figure 1-4-25 



Message display 



© 



Ready 



PC DOS display 



>echo !R! UPGR ' SYS '; exit ; >PRN 



© 



© 



Supervisor mode 
parallel waiting 



>Copy /b w52vl2206 .cmp prn 
>Copy /b w52pmA008.bin prn 



© 


Downloading 






I 




© 


Supervisor mode 


















Power switch: Off/On ) 












© 


Ready 










F 


: igure 1-4-26 



1 -4-24 



FS-8000C/CD/CN 



(3) Downloading firmware using the memory card 



The procedure below provides how to download firmware from a memory card. A memory card can hold both the system 
and the engine firmware together for downloading these firmware at a time. 



Formatting the memory card 



1 . Turn printer power on. 

2. Insert the memory card into the printer's 
memory card slot. 



Press MENU key on the printer's operator 
panel and format the memory card (©). 
When formatting is complete, turn printer 
power off. 

Remove the formatted memory card from 
the printer. 



Copying firmware files to the memory card 



1 . Insert the memory card to the PC's slot or to 
the adaptor. 

2. Copy the firmware file to download to the 
root directory of the memory card. 

3. Remove the memory card from the PC or 
adaptor. 




Memory card slot 



Figure 1-4-27 
Message display 

Operator panel keys 



Ready 



© 



Press the MENU key) Press the V or A key 



Memory Card > 



Press the > key ) Press the V or A key ) 



>Format 



Press the ENTER key 



>Format ? 



Press the ENTER key 



Processing 



(The FORMAT INFORMATION is 
printed automatically.) 



Ready 



Figure 1-4-28 



Memory card 




To PC 



Adapter 

(Memory card reader/writer) 



Figure 1-4-29 



1 -4-25 



FS-8000C/CD/CN 



— Downloading firmware file 



1 . Confirm that the printer's power switch is set 
to off. 

2. Insert the memory card into the printer's 
memory card slot. 




Memory card slot 



Turn printer power on. The firmware file in 
the memory card will be automatically down- 
loaded. 

Message © is displayed during download- 
ing. Confirm the display changes to Mes- 
sage © which indicates downloading is 
complete and turn printer power off, then on. 
Confirm Display © is displayed after warm- 
ing up. 



Figure 1-4-30 



Message display 



© 


Downloading 






I 




© 


Supervisor mode 














Power switch: Off/On ^ 










© 


Ready 





Figure 1-4-31 



Confirming upgrading 



1 . Print a status page. (See page 1-4-2.) 

2. Check that the status page shows the new 
firmware version. 



1-4-26 



FS-8000C/CD/CN 



(4) Downloading message data 

To download the new message data for the display, proceed as follows: 

Connecting the parallel printer cable 

1 . Turn printer and PC power off. 

2. Connect the parallel printer cable between 
the PC and the printer. 



Downloading the message data file 



Turn printer power on. 
Confirm Display © is displayed. 
At the DOS prompt, enter Command ©. 
Note that boot ' spr ' should be entered as 
upper case letters. 
Confirm Display © is displayed. 
At the DOS prompt, enter Command © so 
that the message data file (ex. 
dm5202 . spa) is copied to the printer. 
Display © is displayed during 
downloading.When Display © is displayed 
to indicate downloading is finished, turn 
printer power off, then on. 
Confirm Display ® is displayed after warm- 
ing up. 



Confirming upgrading 



1 . Print a status page. (See page 1 -4-2.) 

2. Check that the status page shows the new 
message data version. 



Parallel 

interface connector 




Parallel printer cable 



To PC 



Figure 1-4-32 



Message display 



© 
© 

© 
© 



Ready 



PC DOS display 



>echo !R! BOOT ' SPR '; exit ; >PRN 



Supervisor mode 
parallel waiting 



>Copy /b dm5202.spa prn 



© 


Downloading 




I 


© 


Supervisor mode 










Power sv\ 








© 


Ready 



Figure 1-4-33 



1 -4-27 



CONTENTS 
1-5 Troubleshooting 

1-5-1 Paper misfeed detection 1-5-2 

(1) Paper misfeed indication 1-5-2 

(2) Paper misfeed detection sensors 1-5-3 

1-5-2 Self-diagnosis 1-5-4 

(1) Self-diagnostic function 1-5-4 

1-5-3 Image formation problems 1-5-32 

(1) No image appears (entirely white) 1-5-33 

(2) No image appears (entirely black) 1-5-33 

(3) Dirt on the top edge 1-5-33 

(4) Dirt on the back side 1-5-34 

(5) Image is too light 1-5-34 

(6) Background is visible 1-5-34 

(7) Awhite line appears longitudinally 1-5-35 

(8) Aline appears longitudinally 1-5-35 

(9) Oily streaks (15 cm intervals) appears at the top of the page longitudinally 1-5-35 

(10) Aline appears laterally 1-5-36 

(11) One side of the print image is darker than the other 1-5-36 

(12) Dots appear on the image 1-5-36 

(13) The leading edge of the image is misaligned with the original image 1-5-37 

(14) Paper creases 1-5-37 

(15) Offset occurs 1-5-37 

(16) Image is partly missing 1-5-38 

(17) Fusing is poor 1-5-38 

(18) Dragged dirt lines appears 1-5-38 



FS-8000C/CD/CN 

1-5-1 Paper misfeed detection 

(1) Paper misfeed indication 

When a paper misfeed occurs, the printer immediately stops printing and displays the jam location on the operation panel. 
To remove paper jammed in the printer, open the front cover, paper feed unit, side cover, paper cassette, duplexer, paper 
feeder cover, duplex unit cover. Paper misfeed detection can be reset by opening and closing the respective covers. 

Feeding the paper having a paper size which does not match the current paper size from the MP tray can cause paper jam. 




x^ 



~^37 



b 5 ^ 

Figure 1-5-1 Paper misfeed indication 



Table 1-5-1 



Jam location 


Contents 


A 


Misfeed in the first paper feeder side cover 


Misfeed in the duplex unit side cover 


B 


Misfeed in the second paper feeder side cover 


C 


Misfeed in the third paper feeder cover 


D 


No paper feed from MP tray 


E 


No paper feed from cassette 1 (The first paper feeder) 


No paper feed from duplexer (Duplex unit) 


F 


No paper feed from cassette 2 (The first paper feeder) 


G 


No paper feed from cassette 3 (The second paper feeder) 


H 


No paper feed from cassette 4 (The second paper feeder) 


I 


No paper feed from cassette 5 (The third paper feeder) 


J 


No paper feed from cassette 6 (The third paper feeder) 


K 


Misfeed in optional mailbox sorter, document finisher, or bulk stacker 


L 


Misfeed in side cover 


M 


Misfeed in paper feed unit 



1-5-2 



FS-8000C/CD/CN 



(2) Paper misfeed detection sensors 




Figure 1-5-3 Paper misfeed detection sensors 

© Registration sensor (REGS) 

(D Upper paper exit sensor (UPEXS) 

® Lower paper exit sensor (LPEXS) 

@ Duplex paper exit sensor (DUPEXS) 

© Upper jam sensor [The first paper feeder] 

© Lower jam sensor [The first paper feeder] 

® Upper jam sensor [The second paper feeder] 

® Lower jam sensor [The second paper feeder] 

® Upper jam sensor [The third paper feeder] 

® Lower jam sensor [The third paper feeder] 

© Duplexer upper jam sensor 

@ Duplexer lower jam sensor 

@ Duplexer upper tray jam sensor 

@ Duplexer lower tray jam sensor 

© Jam sensor (Optional mailbox sorter, document finisher, or bulk stacker) 



1-5-3 



FS-8000C/CD/CN 
1-5-2 Self-diagnosis 

(1) Self-diagnostic function 

This printer is equipped with a self-diagnostic function. When a problem is detected, printing is disabled. The problem is 
displayed as a code consisting of digits number followed by a number between 0121 and F070, indicating the nature of the 
problem. A message is also displayed requesting the user to call for service. 



Self diagnostic codes 



Code 


Contents 


Remarks 


Causes 


Check procedures/corrective measures 


0121 


EEPROM read error 


Defective engine 


Replace the engine controller PWB (KP- 




• The ASIC (U7) of engine controller 


controller PWB 


801). Seepage 1-6-37. 




PWB (KP-801) does not access to 
the EEPROM (U621) of drum PWB 
(KP-813) normally. 


(KP-801). 




Defective drum 
PWB (KP-813). 


Replace the drum unit. See page 1-6-14. 


Defective harness 


Check the continuity of the harness 






(S02575) between 


(S02575). Check the insertion of 






engine controller 


connectors. 






PWB (KP-801) 








and drum unit, or 








poor contact of the 








connector 








terminals. 




0440 


Communication error between 


Defective engine 


Replace the engine controller PWB (KP- 




printer and document finisher/ 


controller PWB 


801). Seepage 1-6-37. 




mailbox sorter 

• The CPU (U2) of engine controller 
PWB (KP-801) does not 
communicate with the document 
finisher DF-31/mailbox sorter SO-30 
normally. 

• The microcomputer (U26) of engine 


(KP-801). 




Defective main 
PWB of document 


Replace the main PWB of document 
finisher DF-31/mailbox sorter SO-30. See 




finisher DF-31/ 
mailbox sorter 
SO-30. 


document finisher DF-31 /mailbox sorter 
SO-30's service manual. 




controller PWB (KP-801) does not 


Defective paper 


Replace the paper feeder/options relay 




communicate to the document 


feeder/options 


PWB (KP-830). See page 1-6-44. 




finisher DF-31/mailbox sorter SO-30 


relay PWB (KP- 






normally. 


830). 




Defective signal 


Replace the signal cable between printer 






cable between 


and document finisher DF-31/mailbox 






printer and 


sorter SO-30. 






document finisher 








DF-31 /mailbox 








sorter SO-30. 




Defective harness 


Check the continuity of the harness 






(S02591) between 


(S02591). Check the insertion of 






engine controller 


connectors. 






PWB (KP-801) 








and paper feeder/ 








options relay PWB 








(KP-830), or poor 








contact of the 








connector 








terminals. 





1-5-4 



FS-8000C/CD/CN 



Code 


Contents 


Remarks 


Causes 


Check procedures/corrective measures 


0450 


Communication error between 


Defective engine 


Replace the engine controller PWB (KP- 




printer and bulk stacker 


controller PWB 


801). Seepage 1-6-37. 




• The CPU (U2) of engine controller 
PWB(KP-801) does not 
communicate with the bulk stacker 
ST-31 normally. 


(KP-801). 




Defective main 
board of bulk 
stacker ST-31 . 


Replace the main board of bulk stacker ST- 
31 . See bulk stacker ST-31 's service 
manual. 


Defective paper 


Replace the paper feeder/options relay 






feeder/options 


PWB (KP-830). See page 1-6-44. 






relay PWB (KP- 








830). 




Defective signal 


Replace the signal cable between printer 






cable between 


and bulk stacker ST-31 . 






bulk stacker ST- 








31. 




Defective harness 


Check the continuity of the harness 






(S02591) between 


(S02591). Check the insertion of 






engine controller 


connectors. 






PWB (KP-801) 








and paper feeder/ 








options relay PWB 








(KP-830), or poor 








contact of the 








connector 








terminals. 




0460 


Communication error between 


Defective engine 


Replace the engine controller PWB (KP- 




printer and duplex unit 


controller PWB 


801). Seepage 1-6-37. 




• The CPU (U2) of engine controller 
PWB(KP-801) does not 
communicate with the duplex unit PD- 
30 normally. 


(KP-801). 




Defective main 
board of duplex 
unit PD-30. 


Replace the main board of duplex unit PD- 
30. See duplex unit PD-30's service 
manual. 


Defective paper 


Replace the paper feeder/options relay 






feeder/options 


PWB (KP-830). See page 1-6-44. 






relay PWB (KP- 








830). 




Defective 


Reinstall duplex unit PD-30. 






connection printer 








and duplex unit 








PD-30. 




Defective harness 


Check the continuity of the harness 






(S02591) between 


(S02591). Check the insertion of 






engine controller 


connectors. 






PWB (KP-801) 








and paper feeder/ 








options relay PWB 








(KP-830), or poor 








contact of the 








connector 








terminals. 





1-5-5 



FS-8000C/CD/CN 



Code 


Contents 


Remarks 


Causes 


Check procedures/corrective measures 


1010 


Overcurrent detection of upper 
cassette base motor (The first paper 
feeder) 

• Excessive current has flowed through 
the upper cassette base motor which 
elevates the bottom plate in the 
cassette when the upper cassette is 
installed in the top paper feeder PF- 
30A or power is turned on. 


Defective upper 
cassette base 
motor. 


Replace the upper cassette base motor. 
See paper feeder PF-30A's service 
manual. 


Defective bottom 
plate elevation 
mechanism of 
upper cassette. 


Check whether there is an object that 
prevents the bottom plate of upper 
cassette from operating normally. 


Defective main 
board of paper 
feeder PF-30A. 


Replace the main board of paper feeder 
PF-30A. See paper feeder PF-30A's 
service manual. 


Defective engine 
controller PWB 
(KP-801). 


Replace the engine controller PWB (KP- 
801). Seepage 1-6-37. 


1020 


Overcurrent detection of lower 
cassette base motor (The first paper 
feeder) 

• Excessive current has flowed through 
the lower cassette base motor which 
elevates the bottom plate in the 
cassette when the lower cassette is 
installed in the first paper feeder PF- 
30A or power is turned on. 


Defective lower 
cassette base 
motor. 


Replace the lower cassette base motor. 
See paper feeder PF-30A's service 
manual. 


Defective bottom 
plate elevation 
mechanism of 
lower cassette. 


Check whether there is an object that 
prevents the bottom plate of lower 
cassette from operating normally. 


Defective main 
board of paper 
feeder PF-30A. 


Replace the main board of paper feeder 
PF-30A. See paper feeder PF-30A's 
service manual. 


Defective engine 
controller PWB 
(KP-801). 


Replace the engine controller PWB (KP- 
801). Seepage 1-6-37. 


Overcurrent detection of cassette 
base motor (Duplex unit) 

• Excessive current has flowed through 
the cassette base motor which 
elevates the bottom plate in the 
cassette when the lower cassette is 
installed in the duplex unit PD-30. 


Defective lower 
cassette base 
motor. 


Replace the lower cassette base motor. 
See the duplex unit PD-30's service 
manual. 


Defective bottom 
plate elevation 
mechanism of 
lower cassette. 


Check whether there is an object that 
prevents the bottom plate of lower 
cassette from operating normally. 


Defective main 
board of the 
duplex unit PD- 
30. 


Replace the main board of the duplex unit 
PD-30. See the duplex unit PD-30's 
service manual. 


Defective engine 
controller PWB 
(KP-801). 


Replace the engine controller PWB (KP- 
801). Seepage 1-6-37. 



1-5-6 



FS-8000C/CD/CN 



Code 


Contents 


Remarks 


Causes 


Check procedures/corrective measures 


1030 


Overcurrent detection of upper 
cassette base motor (The second 
paper feeder) 

• Excessive current has flowed through 
the upper cassette base motor which 
elevates the bottom plate in the 
cassette when the upper cassette is 
installed in the second paper feeder 
PF-30A or power is turned on. 


Defective upper 
cassette base 
motor. 


Replace the upper cassette base motor. 
See paper feeder PF-30A's service 
manual. 


Defective bottom 
plate elevation 
mechanism of 
upper cassette. 


Check whether there is an object that 
prevents the bottom plate of upper 
cassette from operating normally. 


Defective main 
board of paper 
feeder PF-30A. 


Replace the main board of paper feeder 
PF-30A. See paper feeder PF-30A's 
service manual. 


Defective engine 
controller PWB 
(KP-801). 


Replace the engine controller PWB (KP- 
801). Seepage 1-6-37. 


1040 


Overcurrent detection of lower 
cassette base motor (The second 
paper feeder) 

• Excessive current has flowed through 
the lower cassette base motor which 
elevates the bottom plate in the 
cassette when the lower cassette is 
installed in the second paper feeder 
PF-30A or power is turned on. 


Defective lower 
cassette base 
motor. 


Replace the lower cassette base motor. 
See paper feeder PF-30A's service 
manual. 


Defective bottom 
plate elevation 
mechanism of 
lower cassette. 


Check whether there is an object that 
prevents the bottom plate of lower cassette 
from operating normally. 


Defective main 
board of paper 
feeder PF-30A. 


Replace the main board of paper feeder 
PF-30A. See paper feeder PF-30A's 
service manual. 


Defective engine 
controller PWB 
(KP-801). 


Replace the engine controller PWB (KP- 
801). Seepage 1-6-37. 


1050 


Overcurrent detection of upper 
cassette base motor (The third paper 
feeder) 

• Excessive current has flowed through 
the upper cassette base motor which 
elevates the bottom plate in the 
cassette when the upper cassette is 
installed in the third paper feeder PF- 
30A or power is turned on. 


Defective upper 
cassette base 
motor. 


Replace the upper cassette base motor. 
See paper feeder PF-30A's service 
manual. 


Defective bottom 
plate elevation 
mechanism of 
upper cassette. 


Check whether there is an object that 
prevents the bottom plate of upper 
cassette from operating normally. 


Defective main 
board of paper 
feeder PF-30A. 


Replace the main board of paper feeder 
PF-30A. See paper feeder PF-30A's 
service manual. 


Defective engine 
controller PWB 
(KP-801). 


Replace the engine controller PWB (KP- 
801). Seepage 1-6-37. 



1-5-7 



FS-8000C/CD/CN 



Code 



1060 



Contents 

Overcurrent detection of lower 
cassette base motor (The third 
paper feeder) 

• Excessive current has flowed through 
the lower cassette base motor which 
elevates the bottom plate in the 
cassette when the lower cassette is 
installed in the third paper feeder PF- 
30A or power is turned on. 



Remarks 



Causes 

Defective lower 
cassette base 
motor. 



Defective bottom 
plate elevation 
mechanism of 
lower cassette. 

Defective main 
board of paper 
feeder PF-30A. 

Defective engine 
controller PWB 
(KP-801). 



Check procedures/corrective measures 

Replace the lower cassette base motor. 
See paper feeder PF-30A's service 
manual. 



Check whether there is an object that 
prevents the bottom plate of lower 
cassette from operating normally. 

Replace the main board of paper feeder 
PF-30A. See paper feeder PF-30A's 
service manual. 

Replace the engine controller PWB (KP- 
801). Seepage 1-6-37. 



1210 



Side registration home position 
sensor detection error (Duplex unit) 

• The side registration home position 
sensor of duplex unit PD-30 does not 
detect home position of side 
registration guides. 



Defective side 
registration home 
position sensor. 



Replace the side registration home 
position sensor. See duplex unit PD-30's 
service manual. 



Defective side 

registration 

motor. 



Replace the main board of duplex unit PD- 
30. See duplex unit PD-30's service 
manual. 



Defective engine 
controller PWB 
(KP-801). 



Replace the engine controller PWB (KP- 
801). Seepage 1-6-37. 



2000 



Main drive motor lock 

• The frequency generation pulse 
which the main drive motor generates 
to CPU (U2) on the engine controller 
PWB (KP-801) in normal operation 
(after self-diagnostics codes 201 
and 2020 are cleared) is not at the 
correct frequency. 



Defective main 
drive motor. 



Replace the main drive motor. 



Excessive torque 
for driving drum 
unit or primary 
transfer unit. 
(Overloaded by a 
damaged gear.) 



Check if the drum unit or primary transfer 
unit rotates smoothly. Check for broken 
gears. Replace if any. 



Defective 
harness 
(S02571) 
between engine 
controller PWB 
(KP-801) and 
main drive motor, 
or poor contact of 
the connector 
terminals. 



Check the continuity of the harness 
(S02571). Check the insertion of 
connectors. 



Defective engine 
controller PWB 
(KP-801). 



Replace the engine controller PWB (KP- 
801). Seepage 1-6-37. 



1-5-8 



FS-8000C/CD/CN 



Code 


Contents 


Remarks 


Causes 


Check procedures/corrective measures 


2010 


Main drive motor starting error 

• No FG (Frequency generation) pulse 
is entered within the predetermined 
period since ASIC (U8) on the engine 
controller PWB (KP-801) has issued 
a motor activation signal to the main 
drive motor. 


Defective engine 
controller PWB 
(KP-801). 


Replace the engine controller PWB (KP- 
801). Seepage 1-6-37. 


Defective main 
drive motor. 


Replace the main drive motor. 


Excessive torque 
for driving drum 
unit or primary 
transfer unit. 
(Overloaded by a 
damaged gear.) 


Check if the drum unit or primary transfer 
unit rotates smoothly. Check for broken 
gears. Replace if any. 


Defective harness 
(S02571 ) between 
engine controller 
PWB (KP-801) 
and main drive 
motor, or poor 
contact of the 
connector 
terminals. 


Check the continuity of the harness 
(S02571). Check the insertion of 
connectors. 


Defective engine 
controller PWB 
(KP-801). 


Replace the engine controller PWB (KP- 
801). Seepage 1-6-37. 


2020 


Main drive motor starting time-out 

• The FG (Frequency generation) pulse 
does not reach the correct frequency 
since ASIC (U8) on the engine 
controller PWB (KP-801) has issued 
a motor activation signal to the main 
drive motor. 


Defective main 
drive motor. 


Replace the main drive motor. 


Excessive torque 
for driving drum 
unit or primary 
transfer unit. 
(Overloaded by a 
damaged gear.) 


Check if the drum unit or primary transfer 
unit rotates smoothly. Check for broken 
gears. Replace if any. 


Defective harness 
(S02571 ) between 
engine controller 
PWB (KP-801) 
and main drive 
motor, or poor 
contact of the 
connector 
terminals. 


Check the continuity of the harness 
(S02571). Check the insertion of 
connectors. 



1-5-9 



FS-8000C/CD/CN 



Code 



2101 



Contents 

Black developer drive motor lock 

• The FG (Frequency generation) pulse 
which the black developer drive 
motor generates is not entered at the 
correct frequency in CPU (U2) on the 
engine controller PWB (KP-801) 
during normal operation (after self- 
diagnostics codes 2111 and 21 21 are 
cleared). 



Remarks 



Causes 

Defective engine 
controller PWB 
(KP-801). 

Defective black 
developer drive 
motor. 



Excessive torque 
for driving black 
developer. 
(Overloaded by a 
damaged gear.) 



Defective harness 
(S02570) 
between engine 
controller PWB 
(KP-801) and 
black developer 
drive motor, or 
poor contact of 
the connector 
terminals. 



Check procedures/corrective measures 

Replace the engine controller PWB (KP- 
801). Seepage 1-6-37. 

Replace the black developer drive motor. 



Check if the black developer rotates 
smoothly. Check for broken gears. Replace 
if any. 



Check the continuity of the harness 
(S02570). Check the insertion of 
connectors. 



2102 



Color developers drive motor lock 

• The FG (Frequency generation) pulse 
which the color developers drive 
motor generates is not entered at the 
correct frequency in ASIC (U8) on the 
engine controller PWB (KP-801) 
during normal operation (after self- 
diagnostics codes 2112 and 21 22 are 
cleared). 



Defective engine 
controller PWB 
(KP-801). 



Replace the engine controller PWB (KP- 
801). Seepage 1-6-37. 



Defective color 
developers drive 
motor. 



Replace the color developers drive motor. 



Excessive torque 
for driving color 
developers. 
(Overloaded by a 
damaged gear.) 



Check if the yellow, magenta, and cyan 
developers rotate smoothly. Check for 
broken gears. Replace if any. 



Defective harness 
(S02609) 
between engine 
controller PWB 
(KP-801) and 
color developers 
drive motor, or 
poor contact of 
the connector 
terminals. 



Check the continuity of the harness 
(S02609). Check the insertion of 
connectors. 



1-5-10 



FS-8000C/CD/CN 



Code Contents 

2111 Black developer drive motor starting 
error 

• No FG (Frequency generation) pulse 
is entered when ASIC (U7) on the 
engine controller PWB (KP-801) has 
issued a motor activation signal to the 
black developer drive motor. 



Remarks 



Causes 

Defective engine 
controller PWB 
(KP-801). 

Defective black 
developer drive 
motor. 



Excessive torque 
for driving black 
developer. 
(Overloaded by a 
damaged gear.) 



Defective harness 
(S02570) between 
engine controller 
PWB (KP-801) 
and main drive 
motor, or poor 
contact of the 
connector 
terminals. 



Check procedures/corrective measures 

Replace the engine controller PWB (KP- 
801). Seepage 1-6-37. 



Replace the black developer drive motor. 



Check if the black developer rotates 
smoothly. Check for broken gears. Replace 
if any. 



Check the continuity of the harness 
(S02570). Check the insertion of 
connectors. 



2112 Color developers drive motor 
starting error 

• No FG (Frequency generation) pulse 
is entered when ASIC (U7) on the 
engine controller PWB (KP-801) has 
issued a motor activation signal to the 
drive motor for the color developers. 



Defective engine 
controller PWB 
(KP-801). 



Replace the engine controller PWB (KP- 
801). Seepage 1-6-37. 



Defective color 
developers drive 
motor. 



Replace the color developers drive motor. 



Excessive torque 
for driving color 
developers. 
(Overloaded by a 
damaged gear.) 



Check if the yellow, magenta, and cyan 
developers rotate smoothly. Check for 
broken gears. Replace if any. 



Defective harness 
(S02609) between 
engine controller 
PWB (KP-801) 
and color 
developers drive 
motor, or poor 
contact of the 
connector 
terminals. 



Check the continuity of the harness 
(S02609). Check the insertion of 
connectors. 



1-5-11 



FS-8000C/CD/CN 



Code 


Contents 


Remarks 


Causes 


Check procedures/corrective measures 


2121 


Black developer drive motor starting 


Defective engine 


Replace the engine controller PWB (KP- 




time-out 


controller PWB 


801). Seepage 1-6-37. 




• The FG (Frequency generation) pulse 
does not reach the correct frequency 
when ASIC (U7) on the engine 
controller PWB (KP-801) has issued a 


(KP-801). 




Defective black 
developer drive 
motor 


Replace the black developer drive motor. 




motor activation signal to the black 
developer drive motor. 








Excessive torque 


Check if the black developer rotates 






for driving black 


smoothly. Check for broken gears. Replace 






developer. 


if any. 






(Overloaded by a 








damaged gear.) 




Defective harness 


Check the continuity of the harness 






(S02570) between 


(S02570). Check the insertion of 






engine controller 


connectors. 






PWB (KP-801) 








and black 








developer, or poor 








contact of the 








connector 








terminals. 




2122 


Color developers drive motor 


Defective engine 


Replace the engine controller PWB (KP- 




starting time-out 


controller PWB 


801). Seepage 1-6-37. 




• The FG (Frequency generation) pulse 
does not reach the correct frequency 
when ASIC (U8) on the engine 
controller PWB (KP-801) has issued a 


(KP-801). 




Defective color 
developers drive 
motor 


Replace the color developers drive motor. 




motor activation signal to the drive 
motor that drives the color 








Excessive torque 


Check if the yellow, magenta, and cyan 




developers. 


for driving color 


developers rotate smoothly. Check for 






developers. 


broken gears. Replace if any. 






(Overloaded by a 








damaged gear.) 




Defective harness 


Check the continuity of the harness 






(S02609) between 


(S02609). Check the insertion of 






engine controller 


connectors. 






PWB (KP-801) 








and color 








developers, or 








poor contact of 








the connector 








terminals. 





1-5-12 



FS-8000C/CD/CN 



Code Contents 

2320 Fuser drive motor error 

• The fuser control system does not 
operate normally. 

2340 Fuser drive motor driving clock 
table error 

• An error has occurred in the driving 
clock table on the engine controller 
PWB (KP-801) that controls the fuser 
drive motor (a stepping motor). 

2500 Paper feed motor lock 

• The FG (Frequency generation) pulse 
which the paper feed motor 
generates is not entered at the 
correct frequency in ASIC (U8) on the 
engine controller PWB (KP-801) 
during normal operation. 



Remarks 



Causes 

Defective engine 
controller PWB 
(KP-801). 

Defective engine 
controller PWB 
(KP-801). 



Defective engine 
controller PWB 
(KP-801). 



Defective paper 
feed motor. 

Excessive torque 
for driving paper 
feed unit. 
(Overloaded by a 
damaged gear.) 



Defective harness 
(S02564) between 
engine controller 
PWB (KP-801) 
and paper feed 
motor, or poor 
contact of the 
connector 
terminals. 



Check procedures/corrective measures 

Replace the engine controller PWB (KP- 
801). Seepage 1-6-37. 

Replace the engine controller PWB (KP- 
801). Seepage 1-6-37. 



Replace the engine controller PWB (KP- 
801). Seepage 1-6-37. 



Replace the paper feed motor. 

Check if the paper feed unit rotates 
smoothly. Check for broken gears. 
Replace if any. 



Check the continuity of the harness 
(S02564). Check the insertion of 
connectors. 



1-5-13 



FS-8000C/CD/CN 



Code 


Contents 


Remarks 


Causes 


Check procedures/corrective measures 


2510 


Paper feed motor starting error 

• No FG (Frequency generation) pulse 
is entered within the predetermined 
period when ASIC (U8) on the engine 
controller PWB (KP-801) has issued a 
motor activation signal to the paper 
feed motor. 


Defective engine 
controller PWB 
(KP-801). 


Replace the engine controller PWB (KP- 
801). Seepage 1-6-37. 


Defective paper 
feed motor. 


Replace the paper feed motor. 


Excessive torque 
for driving paper 
feed unit. 
(Overloaded by a 
damaged gear.) 


Check if the paper feed unit rotates 
smoothly. Check for broken gears. Replace 
if any. 


Defective harness 
(S02564) between 
engine controller 
PWB (KP-801) 
and paper feed 
motor, or poor 
contact of the 
connector 
terminals. 


Check the continuity of the harness 
(S02564). Check the insertion of 
connectors. 


2520 


Paper feed motor starting time-out 

• The FG (Frequency generation) pulse 
does not reach the correct frequency 
within the predetermined period when 
ASIC (U8) on the engine controller 
PWB (KP-801) has issued a motor 
activation signal to the paper feed 
motor. 


Defective engine 
controller PWB 
(KP-801). 


Replace the engine controller PWB (KP- 
801). Seepage 1-6-37. 


Defective paper 
feed motor. 


Replace the paper feed motor. 


Excessive torque 
for driving paper 
feed unit. 
(Overloaded by a 
damaged gear.) 


Check if the paper feed unit rotates 
smoothly. Check for broken gears. Replace 
if any. 


Defective harness 
(S02564) between 
engine controller 
PWB (KP-801) 
and main paper 
feed, or poor 
contact of the 
connector 
terminals. 


Check the continuity of the harness 
(S02564). Check the insertion of 
connectors. 



1-5-14 



FS-8000C/CD/CN 



Code 


Contents 


Remarks 


Causes 


Check procedures/corrective measures 


4000 


Polygon motor error 

• The READY signal is not entered 
within the predetermined period when 
CPU (U2) on the engine controller 
PWB (KP-801) has issued a motor 
activation signal to the laser scanner 
unit. 


Defective engine 
controller PWB 
(KP-801). 


Replace the engine controller PWB (KP- 
801). Seepage 1-6-37. 


Defective laser 
scanner unit (PD 
PWB [KP-838]). 


Replace the laser scanner unit. See page 
1-6-11. 


Defective harness 
(S02542) between 
engine controller 
PWB (KP-801) 
and laser scanner 
unit, or poor 
contact of the 
connector 
terminals. 


Check the continuity of the harness 
(S02542). Check the insertion of 
connectors. 


4200 


Horizontal synchronized signal (PD) 
detection error 

• The horizontal synchronization signal 
(PD) is not entered by the laser 
scanner unit when ASIC (U7) on the 
engine controller PWB (KP-801) has 
issued a laser activation signal. 


Defective engine 
controller PWB 
(KP-801). 


Replace the engine controller PWB (KP- 
801). Seepage 1-6-37. 


Defective laser 
scanner unit (PD 
PWB [KP-838]). 


Replace the laser scanner unit. See page 
1-6-11. 


Defective harness 
(S02542) between 
engine controller 
PWB (KP-801) 
and laser scanner 
unit, or poor 
contact of the 
connector 
terminals. 


Check the continuity of the harness 
(S02542). Check the insertion of 
connectors. 


5120 


Abnormal separation charger high 
voltage leak current 

• ASIC (U8) on the engine controller 
PWB (KP-801) has detected a 
excessive leakage current in the 
separation charger high voltage 
supply. 


Defective engine 
controller PWB 
(KP-801). 


Replace the engine controller PWB (KP- 
801). Seepage 1-6-37. 


Defective 
separation 
charger high 
voltage unit. 


Replace the separation charger high 
voltage unit. See page 1-6-42. 


Defective harness 
(S02616) between 
engine controller 
PWB (KP-801) 
and separation 
charger high 
voltage unit, or 
poor contact of 
the connector 
terminals. 


Check the continuity of the harness 
(S02616). Check the insertion of 
connectors. 



1-5-15 



FS-8000C/CD/CN 



Code 


Contents 


Remarks 


Causes 


Check procedures/corrective measures 


5300 


Eraser lamp broken detection 

• The current at the correct level is not 
detected when ASIC (U8) on the 
engine controller PWB (KP-801) 
generates the signal to activate the 
eraser lamp. 


Defective engine 
controller PWB 
(KP-801). 


Replace the engine controller PWB (KP- 
801). Seepage 1-6-37. 


Defective drum 
unit (eraser lamp 
or drum PWB [KP- 
813]). 


Replace the drum unit. See page 1-6-14. 


Defective harness 
(S02575) between 
engine controller 
PWB (KP-801) 
and drum unit, or 
poor contact of 
the connector 
terminals. 


Check the continuity of the harness 
(S02575). Check the insertion of 
connectors. 


6000 


Heat roller heating time-out 1 

• The temperature on the heat roller 
does not rise within the 
predetermined period when ASIC 
(U8) on the engine controller PWB 
(KP-801) has turned on the upper 
heater lamp. This is detected when 
the upper heater lamp is turned on. 


Defective engine 
controller PWB 
(KP-801). 


Replace the engine controller PWB (KP- 
801). Seepage 1-6-37. 


Defective upper 
heater lamp. 


Replace the fuser unit (upper heater lamp). 
Seepage 1-6-29. 


Defective upper 
thermostat. 


Replace the fuser unit (upper thermostat). 
Seepage 1-6-28. 


Defective fuser 
PWB(KP-811). 


Replace the fuser unit (fuser PWB [KP- 
811]). See page 1-6-28. 


Defective upper 
fuser thermistor, 
or fitting is not 
proper. 


Replace the fuser unit (upper fuser 
thermistor). See page 1-6-24. 


Defective power 
supply unit. 


Replace the power supply unit. See page 
1-6-38. 


Defective harness 
(S02572) between 
engine controller 
PWB (KP-801) 
and fuser unit, or 
poor contact of 
the connector 
terminals. 


Check the continuity the harness 
(S02572). Check the insertion of 
connectors. 



1-5-16 



FS-8000C/CD/CN 



Code 


Contents 


Remarks 


Causes 


Check procedures/corrective measures 


6010 


Heat roller heating time-out 2 


Defective engine 


Replace the engine controller PWB (KP- 




• The temperature on the heat toller 


controller PWB 


801). Seepage 1-6-37. 




does not reach the correct 


(KP-801). 






temperature within the predetermined 
period after self-diagnostic code 6000 
is cleared. The period for detection is 
longer than the condition for self- 


Defective upper 
heater lamp. 


Replace the fuser unit (upper heater lamp). 
Seepage 1-6-29. 


Defective upper 


Replace the fuser unit (upper thermostat). 




diagnostics code 6000. 


thermostat. 


Seepage 1-6-28. 


Defective fuser 


Replace the fuser unit (fuser PWB [KP- 






PWB(KP-811). 


811]). See page 1-6-24. 


Defective upper 


Replace the fuser unit (upper fuser 






fuser thermistor, 


thermistor). See page 1-6-26. 






or fitting is not 








proper. 




Defective AC 


Connect to the proper AC power source. 






power source 








(Abnormal low 








voltage). 




Defective harness 


Check the continuity of the harness 






(S02572) between 


(S02572). Check the insertion of 






engine controller 


connectors. 






PWB (KP-801) 








and fuser unit, or 








poor contact of 








the connector 








terminals. 




6020 


Heat roller abnormal high 


Defective engine 


Replace the engine controller PWB (KP- 




temperature 


controller PWB 


801). Seepage 1-6-37. 




• The temperature on the heat roller 
has risen up to the abnormal 
temperature. 


(KP-801). 




Defective upper 


Replace the fuser unit (upper heater lamp). 




heater lamp. 


Seepage 1-6-29. 


Defective fuser 


Replace the fuser unit (fuser PWB [KP- 






PWB(KP-811). 


811]). See page 1-6-24. 


Defective upper 


Replace the fuser unit (upper fuser 






fuser thermistor. 


thermistor). See page 1-6-26. 


Defective power 


Replace the power supply unit. See page 






supply unit. 


1-6-38. 


Defective AC 


Connect to the proper AC power source. 






power source. 








(Abnormal high 








voltage) 




Defective harness 


Check the continuity of the harness 






(S02572) between 


(S02572). Check the insertion of 






engine controller 


connectors. 






PWB (KP-801) 








and fuser unit, or 








poor contact of 








the connector 








terminals. 





1-5-17 



FS-8000C/CD/CN 



Code 


Contents 


Remarks 


Causes 


Check procedures/corrective measures 


6030 


Upper fuser thermistor broken 
detection 

• No temperature detection output is 
obtained from the upper fuser 
thermistor. 


Defective engine 
controller PWB 
(KP-801). 


Replace the engine controller PWB (KP- 
801). Seepage 1-6-37. 


Defective fuser 
PWB(KP-811). 


Replace the fuser unit (fuser PWB [KP- 
811]). See page 1-6-24. 


Defective upper 
fuser thermistor, 
or improper 
fitting.. 


Replace the fuser unit (upper fuser 
thermistor). See page 1-6-26. 


Defective harness 
(S02572) between 
engine controller 
PWB (KP-801) 
and fuser unit 
(upper fuser 
thermistor), or 
poor contact of 
the connector 
terminals. 


Check the continuity of the harness 
(S02572). Check the insertion of 
connectors. 


6040 


Upper fuser thermistor abnormal 
temperature detection 

• The temperature detection output 
from the upper fuser thermistor is 
abnormal change. 


Defective engine 
controller PWB 
(KP-801). 


Replace the engine controller PWB (KP- 
801). Seepage 1-6-37. 


Defective fuser 
PWB(KP-811). 


Replace the fuser unit (fuser PWB [KP- 
811]). See page 1-6-24. 


Defective upper 
fuser thermistor, 
or fitting is not 
proper. 


Replace the fuser unit (upper fuser 
thermistor). See page 1-6-26. 


Defective harness 
(S02572) between 
engine controller 
PWB (KP-801) 
and fuser unit 
(upper fuser 
thermistor), or 
poor contact of 
the connector 
terminals. 


Check the continuity of the harness 
(S02572). Check the insertion of 
connectors. 



1-5-18 



FS-8000C/CD/CN 



Code 


Contents 


Remarks 


Causes 


Check procedures/corrective measures 


6100 


Press/heat roller heating time-out 1 


Defective engine 


Replace the engine controller PWB (KP- 




• The temperature on the press/heat 


controller PWB 


801). Seepage 1-6-37. 




roller does not rise within the 
predetermined period when ASIC 
(U8) on the engine controller PWB 
(KP-801) has turned on the lower 
heater lamp. This is detected when 


(KP-801). 




Defective lower 
heater lamp. 


Replace the fuser unit (lower heater lamp). 
Seepage 1-6-29. 




Defective lower 


Replace the fuser unit (lower thermostat). 




the lower heater lamp is turned on. 


thermostat. 


Seepage 1-6-28. 


Defective fuser 


Replace the fuser unit (fuser PWB [KP- 






PWB(KP-811). 


811]). See page 1-6-24. 


Defective lower 


Replace the fuser unit (lower fuser 






fuser thermistor, 


thermistor). See page 1-6-26. 






or fitting is not 








proper. 




Defective power 


Replace the power supply unit. See page 






supply unit. 


1-6-38. 


Defective harness 


Check the continuity of the harness 






(S02572) between 


(S02572). Check the insertion of 






engine controller 


connectors. 






PWB (KP-801) 








and fuser unit, or 








poor contact of 








the connector 








terminals. 




6110 


Press/heat roller heating time-out 2 


Defective engine 


Replace the engine controller PWB (KP- 




• The temperature on the press/heat 


controller PWB 


801). Seepage 1-6-37. 




toller does not reach the correct 


(KP-801). 






temperature within the predetermined 
period after self-diagnostic code 6100 
is cleared. The period for detection is 
longer than the condition for self- 


Defective lower 
heater lamp. 


Replace the fuser unit (lower heater lamp). 
Seepage 1-6-29. 


Defective lower 


Replace the fuser unit (lower thermostat). 




diagnostics code 6100. 


thermostat. 


Seepage 1-6-28. 


Defective fuser 


Replace the fuser unit (fuser PWB [KP- 






PWB(KP-811). 


811]). See page 1-6-24. 


Defective lower 


Replace the fuser unit (upper fuser 






fuser thermistor, 


thermistor). See page 1-6-26. 






or fitting is not 








proper. 




Defective AC 


Connect to the proper AC power source. 






power source 








(Abnormal low 








voltage). 




Defective harness 


Check the continuity of the harness 






(S02572) between 


(S02572). Check the insertion of 






engine controller 


connectors. 






PWB (KP-801) 








and fuser unit, or 








poor contact of 








the connector 








terminals. 





1-5-19 



FS-8000C/CD/CN 



Code 


Contents 


Remarks 


Causes 


Check procedures/corrective measures 


6120 


Press/heat roller abnormal high 


Defective engine 


Replace the engine controller PWB (KP- 




temperature 


controller PWB 


801). Seepage 1-6-37. 




• The temperature on the press/heat 
roller has risen up to the 
predetermined abnormal temperature. 


(KP-801). 




Defective lower 
heater lamp. 


Replace the fuser unit (lower heater lamp). 
Seepage 1-6-29. 


Defective fuser 


Replace the fuser unit (lower thermostat). 






PWB(KP-811). 


Seepage 1-6-28. 


Defective lower 


Replace the lower fuser thermistor. See 






fuser thermistor. 


page 1-6-26. 


Defective power 


Replace the power supply unit. See page 






supply unit. 


1-6-38. 


Defective AC 


Connect to the proper AC power source. 






power source 








(Abnormal high 








voltage). 




Defective harness 


Check the continuity of the harness 






(S02572) between 


(S02572). Check the insertion of 






engine controller 


connectors. 






PWB (KP-801) 








and fuser unit, or 








poor contact of 








the connector 








terminals. 




6130 


Lower fuser thermistor broken 


Defective engine 


Replace the engine controller PWB (KP- 




detection 


controller PWB 


801). Seepage 1-6-37. 




• The temperature detection is not 
obtained from the lower fuser 
thermistor. 


(KP-801). 




Defective fuser 


Replace the fuser unit (fuser PWB [KP- 




PWB(KP-811). 


811]). See page 1-6-24. 


Defective lower 


Replace the fuser unit (lower fuser 






fuser thermistor, 


thermistor). See page 1-6-26. 






or improper fitting. 




Defective harness 


Check the continuity of the harness 






(S02572) between 


(S02572). Check the insertion of 






engine controller 


connectors. 






PWB (KP-801) 








and fuser unit 








(lower fuser 








thermistor), or 








poor contact of 








the connector 








terminals. 





1-5-20 



FS-8000C/CD/CN 



Code Contents 

6140 Lower fuser thermistor abnormal 
temperature detection 

• The temperature detection output 
from the lower fuser thermistor is out 
of the normal range. 



Remarks 



Causes 

Defective engine 
controller PWB 
(KP-801). 



Defective fuser 
PWB(KP-811). 

Defective lower 
fuser thermistor, 
or fitting is not 
proper. 



Defective harness 
(S02572) between 
engine controller 
PWB (KP-801) 
and fuser unit 
(lower fuser 
thermistor), or 
poor contact of 
the connector 
terminals. 



Check procedures/corrective measures 

Replace the engine controller PWB (KP- 
801). Seepage 1-6-37. 



Replace the fuser unit (fuser PWB [KP- 
811]). Seepage 1-6-24. 

Replace the fuser unit (lower fuser 
thermistor). See page 1-6-26. 



Check the continuity of the harness 
(S02572). Check the insertion of 
connectors. 



6430 Oil roller unit fuse break error 

The engine controller PWB (KP-801) 
is not able to cut the fuse on the oil 
roller unit. 



Defective oil roller 
unit fuse. 



Replace the oil roller unit. 



Defective harness 
(S02619) between 
engine controller 
PWB (KP-801) 
and oil roller unit 
detection sensor, 
or poor contact of 
the connector 
terminals. 



Check the continuity of the harness 
(S02619). Check the insertion of 
connectors. 



1-5-21 



FS-8000C/CD/CN 



Code 


Contents 


Remarks 


Causes 


Check procedures/corrective measures 


7001 


Black toner feed motor lock 


Defective engine 


Replace the engine controller PWB (KP- 




• The revolution of the black toner feed 


controller PWB 


801). Seepage 1-6-37. 




motor does not reach the 
predetermined revolution within the 
predetermined period when ASIC 
(U8) on the engine controller PWB 
(KP-801 ) activates the black toner 
feed motor. 


(KP-801). 




Defective black 
developer (Black 
developer PWB 
[KP-817]). 


Replace the black developer. See page 1- 
6-16. 


Defective harness 


Check the continuity of the harness 






(S02547) between 


(S02547). Check the insertion of 






engine controller 


connectors. 






PWB (KP-801) 








and black 








developer, or poor 








contact of the 








connector 








terminals. 




7002 


Cyan toner feed motor lock 


Defective engine 


Replace the engine controller PWB (KP- 




• The revolution of the cyan toner feed 


controller PWB 


801). Seepage 1-6-37. 




motor does not reach the 


(KP-801). 






predetermined revolution within the 
predetermined period when ASIC 
(U8) on the engine controller PWB 
(KP-801) activates the cyan toner 
feed motor. 


Defective cyan 
developer (Cyan 
developer PWB 
[KP-815]). 


Replace the cyan developer. See page 1- 
6-16. 


Defective harness 


Check the continuity of the harness 






(S02547) between 


(S02547). Check the insertion of 






engine controller 


connectors. 






PWB (KP-801) 








and cyan 








developer, or poor 








contact of the 








connector 








terminals. 




7003 


Magenta toner feed motor lock 


Defective engine 


Replace the engine controller PWB (KP- 




• The revolution of the magenta toner 


controller PWB 


801). Seepage 1-6-37. 




feed motor does not reach the 


(KP-801). 






predetermined revolution within the 
predetermined period when ASIC 
(U8) on the engine controller PWB 


Defective magenta 
developer 
(Magenta 
developer PWB 
[KP-815]). 


Replace the magenta developer. See page 
1-6-16. 




(KP-801) activates the magenta toner 
feed motor. 




Defective harness 


Check the continuity of the harness 






(S02546) between 


(S02546). Check the insertion of 






engine controller 


connectors. 






PWB (KP-801) 








and magenta 








developer, or poor 








contact of the 








connector 








terminals. 





1 -5-22 



FS-8000C/CD/CN 



Code Contents 

7004 Yellow toner feed motor lock 

The revolution of the yellow toner 
feed motor does not reach the 
predetermined revolution within the 
predetermined period when ASIC 
(U8) on the engine controller PWB 
(KP-801) activates the yellow toner 
feed motor. 



Remarks 



Causes 

Defective engine 
controller PWB 
(KP-801). 



Defective yellow 
developer (Yellow 
developer PWB 
[KP-847]). 



Defective harness 
(S02546) between 
engine controller 
PWB (KP-801) 
and yellow 
developer, or poor 
contact of the 
connector 
terminals. 



Check procedures/corrective measures 

Replace the engine controller PWB (KP- 
801). Seepage 1-6-37. 



Replace the yellow developer. See page 
1-6-16. 



Check the continuity of the harness 
(S02546). Check the insertion of 
connectors. 



71 01 Black T/C sensor toner density 
detection error 

• A normal toner density signal is not 
entered in the A/D port of CPU (U2) 
on the engine controller PWB (KP- 
801). 



Defective engine 
controller PWB 
(KP-801). 



Replace the engine controller PWB (KP- 
801). Seepage 1-6-37. 



Defective black 
developer (black 
developer PWB 
[KP-817] or black 
T/C sensor). 



Replace the black developer. See page 1- 
6-16. 



Defective black 
developer, (black 
toner feed motor 
does not rotate in 
the correct 
revolution.) 



Replace the black developer. See page 1- 
6-16. 



Defective harness 
(S02547) between 
engine controller 
PWB (KP-801) 
and black 
developer, or poor 
contact of the 
connector 
terminals. 



Check the continuity of the harness 
(S02547). Check the insertion of 
connectors. 



1-5-23 



FS-8000C/CD/CN 



Code 



7102 



Contents 

Cyan T/C sensor toner density 
detection error 

• A normal toner density signal is not 
entered in the A/D port of CPU (U2) 
on the engine controller PWB (KP- 
801). 



Remarks 



Causes 

Defective engine 
controller PWB 
(KP-801). 

Defective cyan 
developer (cyan 
developer PWB 
[KP-815]orcyan 
T/C sensor). 



Defective cyan 
developer, (cyan 
toner feed motor 
does not rotate in 
the correct 
revolution.) 

Defective harness 
(S02547) between 
engine controller 
PWB (KP-801) 
and cyan 

developer, or poor 
contact of the 
connector 
terminals. 



Check procedures/corrective measures 

Replace the engine controller PWB (KP- 
801). Seepage 1-6-37. 



Replace the cyan developer. See page 1- 
6-16. 



Replace the cyan developer. See page 1- 
6-16. 



Check the continuity of the harness 
(S02547). Check the insertion of 
connectors. 



1 -5-24 



FS-8000C/CD/CN 



Code Contents 

7103 Magenta T/C sensor toner density 
detection error 

• A normal toner density signal is not 
entered in the A/D port of CPU (U2) 
on the engine controller PWB (KP- 
801). 



Remarks 



Causes 

Defective engine 
controller PWB 
(KP-801). 

Defective 
magenta 
developer 
(magenta 
developer PWB 
[KP-815]or 
magenta T/C 
sensor). 



Defective 
magenta 
developer, 
(magenta toner 
feed motor does 
not rotate in the 
correct 
revolution.) 



Defective harness 
(S02546) between 
engine controller 
PWB (KP-801) 
and magenta 
developer, or poor 
contact of the 
connector 
terminals. 



Check procedures/corrective measures 

Replace the engine controller PWB (KP- 
801) " 



. See page 1-6-37. 



Replace the magenta developer. See page 
1-6-16. 



Replace the magenta developer. See page 
1-6-16. 



Check the continuity of the harness 
(S02546). Check the insertion of 
connectors. 



1-5-25 



FS-8000C/CD/CN 



Code 



7104 



Contents 

Yellow T/C sensor toner density 
detection error 

• A normal toner density signal is not 
entered in the A/D port of CPU (U2) 
on the engine controller PWB (KP- 
801). 



Remarks 



Causes 

Defective engine 
controller PWB 
(KP-801). 



Defective yellow 
developer (yellow 
developer PWB 
[KP-815]oryellow 
T/C sensor). 



Defective yellow 
developer, (yellow 
toner feed motor 
does not rotate in 
the correct 
revolution.) 

Defective harness 
(S02546) between 
engine controller 
PWB (KP-801) 
and yellow 
developer, or poor 
contact of the 
connector 
terminals. 



Check procedures/corrective measures 

Replace the engine controller PWB (KP- 
801). Seepage 1-6-37. 



Replace the yellow developer. See page 1- 
6-16. 



Replace the yellow developer. See page 1- 
6-16. 



Check the continuity of the harness 
(S02546). Check the insertion of 
connectors. 



1-5-26 



FS-8000C/CD/CN 



Code 


Contents 


Remarks 


Causes 


Check procedures/corrective measures 


7301 


Intermediate toner hopper toner feed 
error 

• Black toner is not fed in the 
intermediate toner hopper in the black 
toner developer from the black toner 
container within the predetermined 
period. 


Defective engine 
controller PWB 
(KP-801). 


Replace the engine controller PWB (KP- 
801). Seepage 1-6-37. 


Defective black 
toner empty 
sensor PWB (KP- 
895, KP-896). 


Replace the black toner empty sensor 
PWB (KP-895, KP-896). 


Defective black 
toner feed clutch. 


Replace the black toner feed clutch. 


Poor contact of 
the black toner 
feed clutch. 


Check the insertion of connectors. 


Defective feed 
drive PWB (KP- 
822). 


Replace the feed drive PWB (KP-822). 


Defective harness 
(S02547) between 
engine controller 
PWB (KP-801) 
and black 
developer, or poor 
contact of the 
connector 
terminals. 


Check the continuity of the harness 
(S02547). Check the insertion of 
connectors. 


Defective harness 
(S02563) between 
engine controller 
PWB (KP-801) 
and feed drive 
PWB (KP-822), or 
poor contact of 
the connector 
terminals. 


Check the continuity of the harness 
(S02563). Check the insertion of 
connectors. 



1-5-27 



FS-8000C/CD/CN 



Code 



7700 



Contents 

Offset drum sensor detection error 

• A pulse signal is not entered to ASIC 
(U7) on the engine controller PWB 
from the offset drum sensor. 



Remarks 



Causes 

Defective drum 
PWB(KP-813). 

Defective engine 
controller PWB 
(KP-801). 

Defective harness 
(S02575) between 
engine controller 
PWB (KP-801) 
and drum unit, or 
poor contact of 
the connector 
terminals. 



Check procedures/corrective measures 

Replace the drum unit. See page 1-6-14. 

Replace the engine controller PWB (KP- 
801). Seepage 1-6-37. 

Check the continuity of the harness 
(S02575). Check the insertion of 
connectors. 



7710 



Offset drum sensor detection error 

• A pulse signal is not entered to ASIC 
(U7) on the engine controller PWB 
from the offset drum sensor. 



Defective drum 
PWB(KP-813). 

Defective engine 
controller PWB 
(KP-801). 



Replace the drum unit. See page 1-6-14. 

Replace the engine controller PWB (KP- 
801). Seepage 1-6-37. 



Defective harness 
(S02575) between 
engine controller 
PWB (KP-801) 
and drum unit, or 
poor contact of 
the connector 
terminals. 



Check the continuity of the harness 
(S02575). Check the insertion of 
connectors. 



1 -5-28 



FS-8000C/CD/CN 



Code 


Contents 


Remarks 


Causes 


Check procedures/corrective measures 


8010 


Feeder motor error (Document 
finisher) 

• Feeder motor of the document 
finisher DF-31 does not operate 
normally. 


Defective feeder 
motor of the 
document finisher 
DF-31. 


Replace feeder motor of the document 
finisher DF-31 . See document finisher DF- 
31 's service manual. 


Defective engine 
controller PWB 
(KP-801). 


Replace the engine controller PWB (KP- 
801). Seepage 1-6-37. 


8020 


Paper ejection motor error 
(Document finisher) 

• Paper ejection motor of the document 
finisher DF-31 does not operate 
normally. 


Defective paper 
ejection motor of 
the document 
finisher DF-31. 


Replace paper ejection motor of the 
document finisher DF-31 . See document 
finisher DF-31 's service manual. 


Defective engine 
controller PWB 
(KP-801). 


Replace the engine controller PWB (KP- 
801). Seepage 1-6-37. 


8140 


Tray elevation motor error 
(Document finisher) 

• Tray elevation motor of the document 
finisher DF-31 does not operate 
normally. 


Defective tray 
elevation motor of 
the document 
finisher DF-31. 


Replace tray elevation motor of the 
document finisher DF-31 . See document 
finisher DF-31 's service manual. 


Defective engine 
controller PWB 
(KP-801). 


Replace the engine controller PWB (KP- 
801). Seepage 1-6-37. 


8170 


Matching board movement motor 
error (Document finisher) 

• Matching board movement motor of 
the document finisher DF-31 does not 
operate normally. 


Defective 
matching board 
movement motor 
of the document 
finisher DF-31. 


Replace matching board movement motor 
of the document finisher DF-31 . See 
document finisher DF-31 's service manual. 


Defective engine 
controller PWB 
(KP-801). 


Replace the engine controller PWB (KP- 
801). Seepage 1-6-37. 


8210 


Staple movement motor error 
(Document finisher) 

• Staple movement motor of the 
document finisher DF-31 does not 
operate normally. 


Defective staple 
movement motor 
of the document 
finisher DF-31. 


Replace staple movement motor of the 
document finisher DF-31 . See document 
finisher DF-31 's service manual. 


Defective engine 
controller PWB 
(KP-801). 


Replace the engine controller PWB (KP- 
801). Seepage 1-6-37. 


8230 


Staple motor error (Document 
finisher) 

• Staple motor of the document finisher 
DF-31 does not operate normally. 


Defective staple 
motor of the 
document finisher 
DF-31. 


Replace staple motor of the document 
finisher DF-31 . See document finisher DF- 
31 's service manual. 


Defective engine 
controller PWB 
(KP-801). 


Replace the engine controller PWB (KP- 
801). Seepage 1-6-37. 



1-5-29 



FS-8000C/CD/CN 



Code 


Contents 


Remarks 


Causes 


Check procedures/corrective measures 


8290 


Sorter compatibility error 


The ROM version 


Replace the ROM of mailbox sorter SO-30 




• The engine controller PWB (KP-801) 


of mailbox sorter 


main board for this printer. 




does not recognize compatibility of 


SO-30 main board 






the mailbox sorter SO-30 for this 


is not compatible 






printer. 


for this printer. 




Defective mailbox 


Replace the sorter SO-30 main board. See 






sorter SO-30 main 


mailbox sorter SO-30's service manual. 






board. 




Defective engine 


Replace the engine controller PWB (KP- 






controller PWB 


801). Seepage 1-6-37. 






(KP-801). 




8510 


Bulk stacker compatibility error 


The ROM version 


Replace the ROM of bulk stacker ST-30 




• The engine controller PWB (KP-801) 


of bulk stacker 


main board for this printer. 




does not recognize compatibility of 


ST-30 main board 






the bulk stacker ST-30 for installed 


is not compatible 






printer. 


for this printer. 




Defective bulk 


Replace the bulk stacker ST-30 main 






stacker ST-30 


board. See bulk stacker ST-30's service 






board. 


manual. 


Defective engine 


Replace the engine controller PWB (KP- 






controller PWB 


801). Seepage 1-6-37. 






(KP-801). 




F0 


Main controller PWB error 


Defective main 


Replace the main controller PWB (KP-800). 


F000 


• The operation breakdown occurs 


controller PWB 


See page 1-6-36. 




between main controller PWB (KP- 


(KP-800). 






800) and operation panel PWB (KP- 
805) during 30 seconds. 


Defective operator 
panel PWB (KP- 
805). 


Replace the operator panel PWB (KP-805). 


Defective main- 


Replace the main-engine controllers relay 






engine controllers 


PWB (KP-802). 






relay PWB (KP- 








802). 




Defective engine 


Replace the engine controller PWB (KP- 






controller PWB 


801). Seepage 1-6-37. 






(KP-801). 




Defective harness 


Check the continuity of the harness 






(S02540) between 


(S02540). Check the insertion of 






engine controller 


connectors. 






PWB (KP-801) 








and operator 








panel PWB (KP- 








805), or poor 








contact of the 








connector 








terminals. 





1-5-30 



FS-8000C/CD/CN 



Code Contents 

F010 System DIMM checksum error 

• Checksum for the system DIMM PWB 
(KP-689) that holds the system 
program is wrong. 



Remarks 



Causes 

Defective system 
DIMM PWB (KP- 
689). 



Defective main 
controller PWB 
(KP-800). 



Check procedures/corrective measures 

Replace the system DIMM PWB (KP-689). 



Replace the main controller PWB (KP-800). 
Seepage 1-6-36. 



F020 Memory check error 

• Access to the expanding memory 
(DIMM) or RAM on the main 
controller PWB (KP-800) is 
unobtainable. 



Defective main 
controller PWB 
(KP-800). 

Defective 
expansion 
memory (DIMM). 



Replace the main controller PWB (KP-800). 
Seepage 1-6-36. 

Replace the expansion memory (DIMM). 



F030 Main controller PWB system error 

• The error concerned with the system 
occurred except self diagnostic codes 
FO (F010) conditions. 

F040 Main - Engine controller PWBs 
communication error 

• The communication breakdown 
occurred between main controller 
PWB (KP-800) and engine controller 
PWB (KP-801) during 30 seconds. 



Defective main 
controller PWB 
(KP-800). 

Defective engine 
controller PWB 
(KP-801). 



Replace the main controller PWB (KP-800). 
Seepage 1-6-36. 



Replace the engine controller PWB (KP- 
801). Seepage 1-6-37. 



Defective main 
controller PWB 
(KP-800). 



Replace the main controller PWB (KP-800). 
Seepage 1-6-36. 



F070 Flash ROM checksum error 

Check result is not correct about flash 
ROM (U10) checksum of engine 
controller PWB (KP-801). 



Defective engine 
controller PWB 
(KP-801). 



Replace the engine controller PWB (KP- 
801). Seepage 1-6-37. 



1-5-31 



FS-8000C/CD/CN 

1-5-3 Image formation problems 



(1) No image appears 
(entirely white). 



(2) No image appears 
(entirely black). 



(3) Dirt on the top edge. (4) Dirt on the back side. 



See page 1-5-33. 
(5) Image is too light. 






I II II I 



See page 1-5-33. 



See page 1-5-33. 



See page 1 -5-34. 



(6) Background is visible. (7) A white line appears (8) A line appears 

longitudinally. longitudinally. 




See page 1-5-34. 

(9) Oily streaks (15 cm 
intervals) appears at 
the top of the page 
longitudinally. 




See page 1-5-35. 

(13) The leading edge of 
the image is 
misaligned with the 
original image. 




See page 1 -5-37. 
(17) Fusing is poor. 




See page 1 -5-34. 

(10) A line appears 
laterally. 



r ^ 



See page 1-5-36. 
(14) Paper creases. 




I I 



See page 1-5-37. 

(18) Dragged dirt lines 
appears. 




See page 1-5-35. 




See page 1 -5-35. 



(11) One side of the print (1 2) Dots appear on the 
image is darker than image, 

the other. 




See page 1-5-36. 
(15) Offset occurs. 




See page 1-5-37. 




I I 



See page 1-5-36. 

(16) Image is partly 
missing. 



£ 



II 



See page 1-5-37. 




See page 1-5-38. 




See page 1-5-38. 



1-5-32 



FS-8000C/CD/CN 



(1) No image appears 
(entirely white). 



Causes 

1 . No laser beam output. 

2. No developing. 

3. No transferring. 



Causes 


Check procedures/corrective measures 


1 . No laser beam output. 




A. Defective main controller PWB operation. 


Replace main controller PWB [KP-800] (See page 1-6-36). 


B. Defective laser scanner unit operation. 


Replace laser scanner unit (See page 1 -6-1 1 ). 


C. Defective engine controller PWB operation. 


Replace engine controller PWB [KP-801] (See page 1-6-37). 


D. Defective harness between engine controller 
PWB and laser scanner unit. 


Replace harness (S02542). 


2. No developing. 




A. Yellow, magenta, cyan, and black magnet 
solenoids are not driven. 


Replace main drive PWB [KP-824]. 


3. No transferring. 




A. Defective secondary transfer unit operation. 


Replace secondary transfer unit (See page 1-6-21). 


B. Secondary transfer unit shift clutch installed 
or operating incorrectly. 


Check the installation position and operation of the secondary 
transfer unit shift clutch. If the either operates incorrectly, replace it. 



(2) No image appears 
(entirely black). 



Causes 

1. No main charging. 




Causes 


Check procedures/corrective measures 


1. No main charging. 


Reinstall main charger unit. 


A. Poor insertion main charger unit. 


Replace main charger unit (See page 1-6-13). 


B. Broken main charger wire. 


Replace main controller PWB [KP-800] (See page 1-6-36). 


C. Defective main controller PWB operation. 


Replace engine controller PWB [KP-801] (See page 1-6-37). 


D. Defective engine controller PWB operation. 


Replace drum unit (See page 1-6-14). 


E. Defective drum unit. 


Replace drum unit (See page 1-6-14). 



(3) Dirt on the top edge. 



Causes 

1. Dirty transfer roller. 

2. Defective cleaning brush unit operation. 




| Causes 


Check procedures/corrective measures 


I 1 . Dirty transfer roller. 


Print several pages. 


I 2. Defective cleaning brush unit operation. 


Replace cleaning brush unit (See page 1-6-15). 



1-5-33 



FS-8000C/CD/CN 

(4) Dirt on the back side. 



Causes 

1 . Dirty conveying belts. 




Causes 


Check procedures/corrective measures 


1 . Dirty conveying belts. 


Clean the conveying belts (See page 1-4-17). 



(5) Image is too light. 




I I 



Causes 

1. Defective developing bias output. 

2. Dirty or flawed drum. 

3. EcoPrint mode enabled (monochrome printing only). 



Causes 


Check procedures/corrective measures 


1 . Defective developing bias output. 




A. Defective developer. 


Check the image by using the test print 1 or 2 of service mode (See 
page 1-4-7). If any color appears defect, replace the developer of 
cause. 


B. Defective drum unit. 


Replace drum unit (See page 1-6-14). 


C. Defective developing/cleaning brush bias 
high voltage unit operation. 


Replace developing/cleaning brush bias high voltage unit (See page 
1-6-35) 


D. Defective engine controller PWB operation. 


Replace engine controller PWB [KP-801] (See page 1-6-37). 


E. Defective main controller PWB operation. 


Replace main controller PWB [KP-800] (See page 1-6-36). 


2. Dirty or flawed drum. 


Perform the drum surface refreshing (See page 1-4-8). 


3. EcoPrint mode enabled (monochrome 
printing only). 


Disable EcoPrint mode (Refer to the operation guide). 



(6) Background is visible. 




I i 



Causes 

1 . Defective developing bias output. 

2. Defective cleaning brush bias output. 



Causes 


Check procedures/corrective measures 


1 . Defective developing bias output. 




A. Defective developer. 


Replace developer (See page 1-6-16). 


B. Defective drum unit. 


Replace drum unit (See page 1-6-14). 


C. Defective developing/cleaning brush bias 
high voltage unit operation. 


Replace developing/cleaning brush bias high voltage unit (See page 
1-6-40) 


D. Defective engine controller PWB operation. 


Replace engine controller PWB [KP-801] (See page 1-6-37). 


E. Defective main controller PWB operation. 


Replace main controller PWB [KP-800] (See page 1-6-36). 


2. Defective cleaning brush unit. 


Replace cleaning brush unit (See page 1-6-15). 





1-5-34 



FS-8000C/CD/CN 



(7) A white line appears 
longitudinally. 




Causes 

1 . Defective laser beam output. 

2. Foreign object in one of the developers. 



Causes 


Check procedures/corrective measures 


1 . Defective Laser beam output. 




A. Defective laser scanner unit. 


Replace the laser scanner unit. (See page 1 -6-1 1 ). 


B. Defective main controller PWB operation. 


Replace main controller PWB [KP-800] (See page 1-6-36). 


2. Foreign object in one of the developers. 


Check the image by using the test print 1 or 2 of service mode (See 
page 1-4-7). If the white line appears on a particular page, replace 
the developer for that color. 



(8) A line appears 
longitudinally. 




Causes 

1 . Dirty main charger wire. 

2. Dirty or flawed drum. 

3. Deformed or worn cleaning blade. 



Causes 


Check procedures/corrective measures 


1. Dirty main charger wire. 


Clean the main charger wire (see page 1-4-13). 


2. Dirty or flawed drum. 




A. Dirty drum. 


Perform drum surface refreshing (See page 1-4-8). 


B. Flawed drum. 


Replace the drum unit (see page 1-6-14). 


3. Deformed or worn cleaning blade in the drum 
unit. 


Replace the drum unit (see page 1-6-14). 



(9) Oily streaks (15 cm 
intervals) appears at 
the top of the page 
longitudinally. 



Causes 

1 . Oil roller unit is new or after the printer has 
been left unused for a prolonged period of 
time. 




I I 



Causes 


Check procedures/corrective measures 


1 . Oil roller unit is new or after the printer has 
been left unused for a prolonged period of 
time. 


Print several pages unit the streaks disappear. 



1-5-35 



FS-8000C/CD/CN 

(10) A line appears 
laterally. 



I I 



Causes 

1 . Defective laser scanner unit. 

2. Defective engine controller PWB operation. 



| Causes 


Check procedures/corrective measures 


I 1. Defective laser scanner unit. 


Replace the laser scanner unit (see page 1 -6-1 1 ). 


I 2. Defective engine controller PWB operation. 


Replace the engine controller PWB [KP-801] (see page 1-6-37). 



(11) One side of the print Causes 

image is darker than 1 . Main charger unit improperly inserted, 
the other. 




r 

I L 



Causes 


Check procedures/corrective measures 


1 . Main charger unit improperly inserted. 


Reinstall main charger unit (see page 1-6-13). 



(1 2) Dots appear on the Causes 

image. 1. Dirty or flawed drum. 

2. Deformed or worn cleaning blade. 




I I 



Causes 


Check procedures/corrective measures 


1 . Dirty or flawed drum. 


Perform the drum surface refreshing (See page 1-4-8). 


2. Deformed or worn cleaning blade. 


Replace the drum unit (see page 1-6-14). 



1-5-36 



FS-8000C/CD/CN 



(13) The leading edge of 
the image is 
misaligned with the 
original image. 



Causes 

1 . Registration clutch operating incorrectly. 

2. Defective engine controller PWB operation. 

3. Defective main controller PWB operation. 




Causes 


Check procedures/corrective measures 


1 . Registration clutch operating incorrectly. 


Check the operation of the registration clutch. If it operates 
incorrectly, replace it. 


2. Defective engine controller PWB operation. 


Replace engine controller PWB [KP-801] (See page 1-6-37). 


3. Defective main controller PWB operation. 


Replace main controller PWB [KP-800] (See page 1-6-36). 



(14) Paper creases. 




Causes 

1. Paper curled. 

2. Paper damp. 



| Causes 


Check procedures/corrective measures 


| 1. Paper curled. 


Check the paper storage conditions. Replace paper. 


I 2. Paper damp. 


Check the paper storage conditions. Replace paper. 



(15) Offset occurs. 




I I 



Causes 

1 . Defective cleaning blade. 



Causes 


Check procedures/corrective measures 


1 . Defective cleaning blade. 


Replace the drum unit (see page 1-6-14). 



1-5-37 



FS-8000C/CD/CN 

(16) Image is partly 
missing. 



JL 



II 



Causes 

1. Paper damp. 

2. Paper creased. 

3. Drum condensation. 

4. Flawed drum. 



Causes 


Check procedures/corrective measures 


1. Paper damp. 


Check the paper storage conditions. 


2. Paper creased. 


Replace the paper. 


3. Drum condensation. 


Perform the drum surface refreshing (See page 1-4-8). 


4. Flawed drum. 


Replace the drum unit (see page 1-6-14). 



(17) Fusing is poor. 




Causes 

1 . Wrong type of paper. 

2. Defective pressure springs for the heat and 
press/heat rollers. 

3. Flawed heat or press/heat roller. 



Causes 


Check procedures/corrective measures 


1 . Wrong types of paper. 


Check if the paper meets specifications. Replace paper. 


2. Defective pressure springs for the heat and 
press/heat rollers. 


Secure the press/heat roller pressure screws (see page 1-3-10). 


3. Flawed heat or press/heat roller. 


Replace the heat or press/heat roller (see page 1-6-30). 



(18) Dragged dirt lines 
appears. 



| | 



Causes 

1 . The dirt on the heat roller and press/heat roller 
resulted by the toner that remained behind the 
separators. This may happen due to an 
excessive use of the paper with rough surface 
(economy). 



Causes 


Check procedures/corrective measures 


1 . The dirt on the heat roller and press/heat 
roller resulted by the toner that remained 
behind the separators. This may happen due 
to an excessive use of the paper with rough 
surface (economy). 


Change the specified premium paper (90 g/m 2 ), or change the paper 
type setting to [Rough] from the operation panel (Refer to operation 
guide). 



1-5-38 



CONTENTS 
1-6 Assembly and Disassembly 

1-6-1 Precautions for assembly and disassembly 1-6-2 

(1) Precautions 1-6-2 

1-6-2 Paper feed section 1-6-3 

(1) Detaching and refitting the MP tray unit 1-6-3 

(2) Detaching and refitting the MP tray feed roller and MP tray retard roller 1-6-4 

(3) Detaching and refitting the face-down unit 1-6-5 

(4) Detaching and refitting drive assembly B 1-6-6 

(5) Detaching and refitting drive assembly A 1-6-6 

(6) Detaching and refitting the paper conveying belts 1-6-7 

(7) Detaching and refitting the paper conveying fan motors 1 and 2 1-6-8 

(8) Detaching and refitting the upper and lower registration rollers 1-6-9 

(9) Detaching and refitting the middle roller 1-6-10 

1-6-3 Laser scanner unit 1-6-11 

(1) Detaching and refitting the laser scanner unit 1-6-11 

1-6-4 Main charger unit 1-6-13 

(1) Detaching and refitting the main charger unit 1-6-13 

(2) Detaching and refitting the main charger grid 1-6-13 

1-6-5 Drum unit 1-6-14 

(1) Detaching and refitting the drum unit 1-6-14 

1-6-6 Primary transfer unit 1-6-15 

(1) Detaching and refitting the primary transfer unit 1-6-15 

(2) Detaching and refitting the cleaning brush unit 1-6-15 

1-6-7 Developers (and toner feed section) 1-6-16 

(1) Detaching and refitting the developers 1-6-16 

(2) Detaching and refitting the waste toner duct assembly 1-6-18 

(3) Detaching and refitting the black toner feed assembly 1-6-19 

(4) Detaching and refitting the black toner container feed assembly 1-6-19 

(5) Detaching and refitting the black toner feed drive assembly 1-6-20 

1-6-8 Secondary transfer unit 1-6-21 

(1) Detaching and refitting the transfer roller and the separation charger unit 1-6-21 

(2) Detaching and refitting the secondary transfer unit shift clutch 1-6-23 

1-6-9 Fuser unit (and drive section) 1-6-24 

(1) Detaching and refitting the fuser unit 1-6-24 

(2) Detaching and refitting the fuser top cover and upper separator bracket 1 -6-24 

(3) Detaching and refitting the upper and lower fuser thermistors 1-6-26 

(4) Detaching and refitting the upper and lower thermostats 1-6-28 

(5) Detaching and refitting the upper and lower heater lamps 1-6-29 

(6) Detaching and refitting the heat roller and the press/heat roller 1-6-30 

(7) Detaching and refitting the separators of lower separator bracket 1-6-34 

(8) Detaching and refitting drive assembly C 1-6-35 

1-6-10 PWBs and high voltage units 1-6-36 

(1) Detaching and refitting the main controller PWB 1-6-36 

(2) Detaching and refitting the engine controller PWB 1-6-37 

(3) Detaching and refitting the power supply unit 1-6-38 

(4) Detaching and refitting the developing/cleaning brush bias high voltage unit 1-6-40 

(5) Detaching and refitting the main charger high voltage unit 1-6-41 

(6) Detaching and refitting the separation charger high voltage unit 1 -6-42 

(7) Detaching and refitting the paper feeder/options relay PWB 1-6-44 

(8) Detaching and refitting the transfer roller bias high voltage unit 1-6-44 

1-6-11 Others 1-6-45 

(1) Detaching and refitting the ozone filter 1-6-45 



FS-8000C/CN/CD 

1-6-1 Precautions for assembly and disassembly 

(1) Precautions 

• Be sure to turn the power switch off and disconnect the power plug before starting disassembly. The power plug must 
not be unplugged from power at least 30 minutes since the printer is switched off. In case the power plug must be 
unplugged just after power off for service purpose, pull out the paper feed unit so that the fuser unit is away from 
developers to avoid toner lumping due to heat from the fuser unit. 

• When handling PWBs (printed wiring boards), do not touch connectors with bare hands. It will damage the PWB. 

• Do not touch any PWB containing ICs with bare hands or any object prone to static charge. 

• Use only the specified part when to replacing the thermostat in the fuser. Never substitute electric wires, as the printer 
may be seriously damaged. 



1-6-2 



1-6-2 Paper feed section 



FS-8000C/CN/CD 



(1) Detaching and refitting the MP tray unit 

Follow the procedure below to replace the MP tray unit. 

Procedure 

1. Remove the top cover (See page 1-6-11). 

2. Remove the six screws and then remove the 
right cover. 




Right cover 

Screws 



Screws ' 
Figure 1-6-1 



3. Remove one connector (YC28) from the 
engine controller PWB. 

4. Remove the six screws and then remove the 
MP tray unit. 

5. Replace the MP tray unit and refit all the 
removed parts. 



MP tray unit 




Figure 1-6-2 



1-6-3 



FS-8000C/CN/CD 

(2) Detaching and refitting the MP tray feed roller and MP tray retard roller 

Follow the procedure below to replace the MP tray feed roller and MP tray retard roller. 



Procedure 

1 . Remove the primary transfer unit (See page 
1-6-15). 

2. Open MP tray. 

3. Remove the MP tray feed roller while 
pressing the lever. 

4. Remove the holder from the MP tray unit. 

5. Remove the MP tray retard roller from the 
holder. 

6. Replace the MP tray feed roller and MP tray 
retard roller and refit all the removed parts. 



MP tray unit 




MP tray feed roller 



Figure 1-6-3 



1-6-4 



FS-8000C/CN/CD 



(3) Detaching and refitting the face-down unit 

Follow the procedure below to replace the face-down unit. 

Procedure 

1. Remove rear cover (See page 1-6-37). 

2. Remove the top cover (See page 1-6-11). 

3. Detach the two belts and then remove the left 
side cover. 

4. Remove the six screws. 

5. While pulling the left side cover to upward 
and then remove it. (Note that the cover is 
hooked inside) 




Left cover 

Belts 
Left side cover 



Screws 



Screws 



Figure 1-6-4 



6. Remove the one connector (YC18) from the 
engine controller PWB. 

7. Remove the harness from the four wire 
hooks. 

8. Remove the four screws and then remove the 
face down unit. 

9. Replace the face-down unit and refit all the 
removed parts. 



Screw 



Connector (YC1 8) 
Wire hooks 



Screw 




Face down unit 



Screw 



Figure 1-6-5 



1-6-5 



FS-8000C/CN/CD 



(4) Detaching and refitting drive assembly B 

Follow the procedure below to replace drive assembly B. 

Procedure 

1 . Remove the main controller box (See page 6- 
1-42). 

2. Remove the two connectors. 

3. Remove the four screws and then remove the 
drive assembly B. 

4. Replace the drive assembly B and refit all the 
removed parts. 




Drive assembly B 



Screws 

Figure 1-6-6 



Screws 



(5) Detaching and refitting drive assembly A 

Follow the procedure below to replace drive assembly A. 

Procedure 

1 . Remove the power supply unit (See page 1 - 
6-39). 

2. Remove all (six) tabs from the drive assembly 
A. 

3. Remove the seven screws and then remove 
drive assembly A. 

4. Replace drive assembly A and refit all the 
removed parts. 



Screws 




Screws 



Figure 1-6-7 



1-6-6 



(6) Detaching and refitting the paper conveying belts 

Follow the procedure below to replace the paper conveying belts. 



FS-8000C/CN/CD 



Procedure 

1 . Draw the paper feed unit. 

2. Remove the one screw and then remove the 
clutch cover. 

3. Remove the five screws. 

4. Remove the one connector and the wire 
holder and then remove the paper conveying 
assembly. 



Screws / Screw 

Clutch cover 



w 




Paper conveying 
assembly 



Connector 



Figure 1-6-8 



5. Remove the E-ring and bush and then 
remove each tension roller. 

6. Remove the two paper conveying belts from 
the paper conveying assembly. 

7. Replace the paper conveying belts and refit 
all the removed parts. 



Paper conveying assembly 



Tension rollers 



Bushes 




Paper conveying belt 



Paper conveying belt 



Figure 1-6-9 



1-6-7 



FS-8000C/CN/CD 

(7) Detaching and refitting the paper conveying fan motors 1 and 2 

Follow the procedure below to replace the paper conveying fan motors 1 and 2. 



Procedure 

1 . Remove the paper conveying assembly (See 
previous page). 

2. Remove four screws and then remove the 
paper conveying fan duct. 



Screws 



Screws 



Paper conveying fan duct 




Figure 1-6-10 



3. Remove the two connectors and wire hooks 
and then remove the paper conveying fan 
motors 1 and 2. 

4. Replace the paper conveying fan motors 1 
and 2, and refit all the removed parts. 



Connector 
(Paper conveying 
fan motor 2) 



Connector 
(Paper conveying 
fan motor 1 ) 



YC805 




Paper conveying 
fan motor 1 



Wire hooks 



Figure 1-6-11 



1-6-8 



FS-8000C/CN/CD 



(8) Detaching and refitting the upper and lower registration rollers 

Follow the procedure below to replace the upper and lower registration rollers. 



Procedure 

1 . Remove the secondary transfer unit (See 
page 1-6-22). 

2. Remove the two springs and then remove the 
upper registration roller assembly. 

3. Remove the two E-rings, two bushes, and 
gear from the upper registration roller. 



Spring 



Upper registration roller 



Spring 
E-ring 




Figure 1-6-12 



4. While unlatching the latch, remove the input 
gear. 

5. Remove the two bushes. 

6. While sliding the lower registration roller back 
and forth and then remove it. Do not deform 
the sheet. 

7. Remove the E-ring and gear from the lower 
registration roller. 

8. Replace the lower registration roller and refit 
all the removed parts. 




Figure 1-6-13 



1-6-9 



FS-8000C/CN/CD 

(9) Detaching and refitting the middle roller 

Follow the procedure below to replace the middle roller. 

Procedure 

1 . Draw the paper feed unit out. 

2. Remove the two springs and then remove the 
middle guide assembly. 



Spring , 




Middle guide assembly 



Spring 



Figure 1-6-14 



3. Remove the two springs. 

4. Detach the front end of the middle roller and 
slide the MID R bush and middle roller to the 
backward. 

5. Remove the middle roller assembly from the 
paper feed unit. 

6. While unlatching the latch and then remove 
the input gear. 

7. Remove the two E-rings, bush, and MID R 
bush from the middle roller. 

8. Replace the middle roller and refit all the 
removed parts. 



Spring 




Figure 1-6-15 



1-6-10 



1-6-3 Laser scanner unit 



(1) Detaching and refitting the laser scanner unit 

Perform the following procedure when the laser scanner unit is to be checked or replaced. 



FS-8000C/CN/CD 



Procedure 

1 . Open the front cover. 

2. Unlatch the four latches and then remove the 
operation panel. 

3. Remove the one screw. 



Screw 



Latches 



Operation panel 




4. Remove the rear cover (See page 1-6-37). 

5. Remove the one connector (YC4) from the 
engine controller PWB. 

6. Remove the five screws and then remove the 
top cover. 



Figure 1-6-16 



Screws 




Top cover 



Connector 
(YC4) 



Figure 1-6-17 



1-6-11 



FS-8000C/CN/CD 



7. Remove the one connector from the laser 
scanner unit. 

8. Remove the four screws and then remove the 
laser scanner unit. 

9. Replace the laser scanner unit and refit all 
the removed parts. 

Cautions: 

• When refitting the laser scanner unit, make 
sure placing the heat radiation silicon pieces 
between the laser scanner unit (bottom of 
the polygon motor) and frame. 



Screws 




Screws 



Connector 



Laser scanner unit 



9" Heat radiation 

silicon pieces 





Figure 1-6-18 



1-6-12 



FS-8000C/CN/CD 



1-6-4 Main charger unit 

(1) Detaching and refitting the main charger unit 

Perform the following procedure when the main charger unit is to be checked or replaced. 



Procedure 

1 . Open the front cover. 

2. While pushing the main charger unit release 
lever upward, slightly lift the main charger 
unit, and then pull it out. 



Main charger unit release lever 



Main charger 




Figure 1-6-19 



(2) Detaching and refitting the main charger grid 

Perform the following procedure when the main charger grid is to be checked or replaced. 



Procedure 

1 . Remove the main charger unit. 

2. Detach the main charger grid from the hooks. 

3. Replace the main charger shield and refit all 
the removed parts. 



Main charger grid 



Hook 




Figure 1-6-20 



1-6-13 



FS-8000C/CN/CD 

1-6-5 Drum unit 



(1) Detaching and refitting the drum unit 

Follow the procedure below to replace the drum unit. 

Cautions: 

• Before removing the drum unit, first remove 
the main charger unit. 

• While the drum unit is removed from the 
printer, keep the drum unit on a clean, flat 
surface in a dry place. 

1. Remove all (four) developers (See page 1-6- 
16). 

2. Remove the main charger unit (See the 
previous page). 

3. Remove the two screws and then remove the 
drum unit. 

4. Replace the drum unit and refit all the 
removed parts. 



Screw 



Screw 




Figure 1-6-21 



1-6-14 



1-6-6 Primary transfer unit 



FS-8000C/CN/CD 



(1) Detaching and refitting the primary transfer unit 

Follow the procedure below to replace the primary transfer unit. 



Cautions: 

• While the primary transfer unit is removed 
from the printer, keep the primary transfer 
unit on a clean, flat surface in a dry place. 

Procedure 

1 . Open the front cover. 

2. Draw the paper feed unit. 

3. Turn the lock lever to release position. 

4. Draw the primary transfer unit until it stops. 

5. Remove the one screw. 

6. While pressing the gray lever, remove the 
primary transfer unit from the printer. 

7. Replace the primary transfer unit and refit all 
the removed parts. 



Lock Lever 




Primary transfer unit 



(2) Detaching and refitting the cleaning brush unit 

Follow the procedure below to replace the cleaning brush unit. 



Procedure 

1 . Remove the primary transfer unit (See 
above). 

2. Remove the one screw. 

3. Pull the release lever up. 

4. Pull the levers down and then remove the 
cleaning brush unit. 

5. Replace the cleaning brush unit and refit all 
the removed parts. 



Figure 1-6-22 



Primary transfer unit 




Cleaning brush unit 



Screw 



Release lever 



Figure 1-6-23 



1-6-15 



FS-8000C/CN/CD 

1-6-7 Developers (and toner feed section) 

(1) Detaching and refitting the developers 

Follow the procedure below to replace the developers. 



Cautions: 

• When closing the process frame, secure two 
screws A first, and then secure two screws 
B. 

Procedure 

1 . Remove the primary transfer unit (See the 
previous page). 

2. Close the paper feed unit. 

3. Remove the four screws A and B. 

4. Open the two stoppers. 

5. Draw the process frame. 




Paper feed unit 



Figure 1-6-24 



1-6-16 



FS-8000C/CN/CD 



6. Remove the developers in the order of black, 
yellow, magenta, and cyan from the process 
frame. 

7. Replace the developers and refit all the 
removed parts. 

Cautions: 

• While the developers are removed from the 
printer, keep them away from any magnetic 
record media, credit cards, etc. 



Process frame 




Magenta developer 



Cyan developer 
Figure 1-6-25 



1-6-17 



FS-8000C/CN/CD 

(2) Detaching and refitting the waste toner duct assembly 

Follow the procedure below to replace the waste toner duct assembly. 



Procedure 

1 . Remove the drum unit (See page 1 -6-1 4). 

2. Remove the one screw and then remove the 
process frame left cover. 

3. Remove the four pins and conical springs and 
then remove the process frame from the rails. 



Pins 



Screw 



Process frame left cover 



Conical 
springs 




Figure 1-6-26 



4. Remove the three screws. 

5. Remove the waste toner duct assembly and 
the steel ball. 

Cautions: 

• When refitting the waste toner duct, make 
sure to place the steel ball in the opening of 
the duct. 



Steel ball 




Screws 



Figure 1-6-27 



1-6-18 



FS-8000C/CN/CD 



(3) Detaching and refitting the black toner feed assembly 

Follow the procedure below to replace the black toner feed assembly. 



Procedure 

1 . Remove the waste toner duct assembly (See 
the previous page). 

2. Remove the four screws and then remove the 
black toner feed assembly. 

3. Replace the black toner feed assembly and 
refit all the removed parts. 



Black toner feed assembly 



Screws 




Screws 



Figure 1-6-28 



(4) Detaching and refitting the black toner container feed assembly 

Follow the procedure below to replace the black toner container feed assembly. 



Procedure 

1 . Remove the process frame (See the previous 
page). 

1 . Remove the black toner container. 

2. Remove the one screw and then remove the 
black toner container feed assembly. 

3. Replace the black toner container feed 
assembly and refit all the removed parts. 



Black toner container 
feed assembly 




Figure 1-6-29 



1-6-19 



FS-8000C/CN/CD 

(5) Detaching and refitting the black toner feed drive assembly 

Follow the procedure below to replace the black toner feed drive assembly. 



Procedure 

1 . Draw the process frame (See page 1 -6-1 6). 

2. Remove the harness holder (See page 1-6- 
42). 

3. Remove the four screws and then remove the 
black toner feed drive assembly. 

4. Replace the black toner feed drive assembly 
and refit all the removed parts. 



Black toner feed drive assembly 




Screws 
Screws 



Figure 1-6-30 



1-6-20 



FS-8000C/CN/CD 



1-6-8 Secondary transfer unit 

(1) Detaching and refitting the transfer roller and the separation charger unit 

Follow the procedure below to replace the transfer roller and the separation charger unit. 



Procedure 

1 . Open the front cover. 

2. Draw the paper feed unit. 

3. Remove the waste toner bottle. 

4. Detach the secondary transfer unit from the 
bushes. 

5. Remove the tab from the terminal. 

6. Remove the secondary transfer unit from the 
paper feed unit. 



Secondary transfer unit 




Figure 1-6-31 



1-6-21 



FS-8000C/CN/CD 



7. Remove the transfer roller. To remove the 
transfer roller, pull both ends up. 



Transfer roller 




Secondary transfer unit 



Figure 1-6-32 



8. Pull the projection of separation charger unit 
(front side). 

9. Remove the separation charger unit from the 
secondary transfer unit. 

1 0. Replace the transfer roller or the separation 
charger unit and refit all the removed parts. 



Separation charger unit 



Separation 
charger unit 




Figure 1-6-33 



1 -6-22 



(2) Detaching and refitting the secondary transfer unit shift clutch 

Follow the procedure below to replace the secondary transfer unit shift clutch. 



FS-8000C/CN/CD 



Procedure 

1 . Draw the paper feed unit. 

2. Remove the one screw and then remove the 
clutch cover. 

3. Remove the five screws. 

4. Remove the one connector and the wire 
holder and then remove the paper conveying 
assembly. 



Screws 




/ Screw 
Clutch cover 



Paper conveying 
assembly 



Connector 



Figure 1-6-34 



5. Remove the E-ring and then remove the 
secondary transfer unit shift clutch. 

6. Remove the wire holder from the secondary 
transfer unit shift clutch. 

7. Replace the secondary transfer unit shift 
clutch and refit all the removed parts. 



Secondary transfer 
unit shift clutch 



E-ring 




Wire holder 



Figure 1-6-35 



1 -6-23 



FS-8000C/CN/CD 

1-6-9 Fuser unit (and drive section) 



Cautions: 

• The fuser unit is hot after the printer was 
running. Wait until it cools down. 

(1) Detaching and refitting the fuser unit 

Follow the procedure below to detach the fuser unit. 

Procedure 

1 . Open the front cover. 

2. Drew the paper feed unit out. 

3. Remove one screw. 

4. Open the left paper guide down. 

5. Remove the fuser unit. 



user unit 



Screw 




Left paper guide 



Figure 1-6-36 



(2) Detaching and refitting the fuser top cover and upper separator bracket 

Follow the procedure below to remove the fuser top cover and the upper separator bracket. 



Procedure 

1 . Detach the fuser unit (See above). 

2. Remove the one screw and then remove the 
fuser knob. 

3. Remove the three screws and then remove 
the fuser rear cover. 



fuser knob 



Screw 




Screws 



Fuser rear cover 



Figure 1-6-37 



1 -6-24 



FS-8000C/CN/CD 



4. Remove three screws and then remove the 
fuser front cover. 




Fuser front cover 



Figure 1-6-38 



5. Open and hold the fuser top cover in its 
upright position and pull it out. 

6. Open and hold the upper separator bracket 
and then pull it out. 



Fuser top cover 




Shim 



Upper separator bracket 



Figure 1-6-39 



1-6-25 



FS-8000C/CN/CD 

(3) Detaching and refitting the upper and lower fuser thermistors 

Follow the procedure below to replace the upper and lower fuser thermistors. 

Procedure 

1 . Remove the fuser top cover (See the 
previous page). 

2. Remove the two screws and then remove the Screw 
fuser upper entrance guide. 

3. Remove the two screws and then remove the 
fuser bottom cover. 



Fuser upper entrance guide 




Screw 

Fuser bottom cover 



Screw 



Figure 1-6-40 



1-6-26 



FS-8000C/CN/CD 



4. Remove one connector. 

5. Remove two screws and then remove the 
holder. 

6. Remove one screw and then remove the 
upper fuser thermistor. 



Screws 



Holder 




Connector 



Holder 
v Upper fuser thermistor i 



7. Remove one connector. 

8. Remove one screw and then remove the 
lower fuser thermistor. 

9. Replace the upper and lower thermistor and 
refit all the removed parts. 



Figure 1-6-41 




Screw 

Lower fuser thermistor 



Connector 



Figure 1-6-42 



1-6-27 



FS-8000C/CN/CD 

(4) Detaching and refitting the upper and lower thermostats 

Follow the procedure below to replace the upper and lower thermostats. 



Procedure 

1 . Remove the fuser top cover (See page 1 -6- 
24). 

2. Remove the two screws and then remove the 
two terminals for each thermostat. 

3. Remove the upper and lower thermostats. 

4. Replace the upper and lower thermostats and 
refit all the removed parts. 



Screws 



Upper thermostat 

Terminal 




Lower thermostat 



Screws 



Figure 1-6-43 



1-6-28 



FS-8000C/CN/CD 



(5) Detaching and refitting the upper and lower heater lamps 

Follow the procedure below to replace the upper and lower heater lamps. 

Cautions: 

• When refitting the heater lamps, do not mix 
them. The upper and lower heater lamps 
are not identical and each has a cable of 
different length. 

• The terminal must be fixed by the screw 
with the soldered side facing up. 



Procedure 

1 . Remove the fuser top cover (See page 1-6- 
24). 

2. Remove each one screw and then remove 
the terminals. 

3. Draw the upper and lower heater lamps out 
from the fuser unit. 

4. Replace the upper and lower heater lamps 
and refit all the removed parts. 



Upper heater lamp 




Figure 1-6-44 



1-6-29 



FS-8000C/CN/CD 

(6) Detaching and refitting the heat roller and the press/heat roller 

Follow the procedure below to replace the heat roller and the press/heat roller. 



Procedure 

1 . Remove the upper and lower heater lamps 
(See the previous page). 

2. Remove one screws and then remove the 
terminal. 

3. Remove two gears. 

4. Remove four connectors. 

5. Remove two screws. 

6. Remove the front heater lamp bracket. 



Screws 




Gears 



Front heater lamp bracket 



Figure 1-6-45 



7. Remove the lever and the spring. 

8. Remove two screws and then detach the 
connector. 

9. Remove three screws and then remove the 
rear heater lamp bracket. 



Screw 




Spring 
Collar 
Screws \ / 




\ Rear heater lamp bracket 



Screw 



/"Spring 



Connector 



Figure 1-6-46 



1-6-30 



FS-8000C/CN/CD 



10. Remove two screws and then remove the 
fuser top frame. 

11. Remove the gear. 



12. Loosen two screws to release the press/heat 
roller pressure. 

13. Remove the flange gear. 

14. Remove two C-rings. 

15. Remove two bearings and then remove the 
heat roller. 



Screw 



Screw 




Fuser top frame 



Figure 1-6-47 



Gear 



- C-ring 




Heat roller 



Bearing 

Flange gear 



Figure 1-6-48 



1-6-31 



FS-8000C/CN/CD 

16. Remove three screws and then remove the 
fuser right paper guide. 

17. Remove three screws and then remove the 
fuser left lower cover. 



Screws 



Fuser right paper guide 




Fuser left lower cover 



Screws 



Figure 1-6-49 



18. Remove the gear. 

19. Remove two E-rings and then remove the two 
bushes and the exit roller gears. 

20. Remove the fuser exit roller. 

21 . Remove three screws and then remove the 
fuser left paper guide. 



Exit roller 



Bush 



Exit roller gear 
Bush 




Fuser left paper guide 



Figure 1-6-50 



1 -6-32 



22. Remove two screws and then remove the 
lower separator bracket. 



FS-8000C/CN/CD 



Screw 



Screw 




Lower separator bracket 



23. Remove the press/heat roller and then 
remove two bearings. 

24. Replace the heat roller and the press/heat 
roller and refit all the removed parts. 



Figure 1-6-51 



Bearing 



Press/heat roller 



Bearing 




Figure 1-6-52 



1 -6-33 



FS-8000C/CN/CD 

(7) Detaching and refitting the separators of lower separator bracket 

Follow the procedure below to replace the separator of lower separator bracket. 



Procedure 

1 . Remove the lower separator bracket from the 
fuser unit (See page 1-6-33). 

2. Remove three screws and then remove the 
stay. 

3. Remove the spring. 

4. Lay down the separator and then pull out it. 

5. Replace the separator and refit all the 
removed parts. 



Lower separator bracket 




Screws 



Figure 1-6-53 



1 -6-34 



(8) Detaching and refitting drive assembly C 

Follow the procedure below to replace drive assembly C. 



FS-8000C/CN/CD 



Procedure 

1 . Remove the power supply unit (See page 1 - 
6-38). 

2. Remove one connector. 

3. Remove three screws and then remove drive 
assembly C. 

4. Replace drive assembly C and refit all the 
removed parts. 




Drive assembly C 



Screws 



Figure 1-6-54 



1-6-35 



FS-8000C/CN/CD 

1-6-10 PWBs and high voltage units 

(1) Detaching and refitting the main controller PWB 

Follow the procedure below to detaching and refitting the main controller PWB. 

Procedure 

1 . Remove the three screws. 

2. Draw the main controller PWB. 




Main controller PWB 



Screws 



Figure 1-6-55 



1-6-36 



(2) Detaching and refitting the engine controller PWB 

Follow the procedure below to detaching and refitting the engine controller PWB. 

Procedure 

1 . Remove all (rear: twelve, left: three) screws 
and then remove the rear cover. 



FS-8000C/CN/CD 




Rear cover 



Figure 1-6-56 



2. Remove all (twenty six) connectors from the 
engine controller PWB. 

3. Remove six screws and then remove the 
engine controller PWB. 

4. Replace the engine controller PWB and refit 
all the removed parts. 



Engine controller PWB 



Screws 




Screws 



Figure 1-6-57 



1-6-37 



FS-8000C/CN/CD 

(3) Detaching and refitting the power supply unit 

Follow the procedure below to detaching and refitting the power supply unit. 



Procedure 

1 . Remove the engine controller PWB (See the 
previous page). 

2. Remove four screws and then remove the 
controller box support. 




Controller box support 



Figure 1-6-58 



3. Remove five screws and then remove the 
engine controller box. 



Engine controller box 



Screws 




Screws 



Figure 1-6-59 



1-6-38 



FS-8000C/CN/CD 



4. Remove the face-down unit (See page 1-6-5). 

5. Remove one connector. 

6. Remove one screw and then remove the 
ground plate. 

7. Remove four screws and then remove the 
power supply unit. 

8. Replace the power supply unit and refit all the 
removed parts. 



Power supply unit 



Screw 

Ground plate 
Screws 




Connector 



Figure 1-6-60 



1-6-39 



FS-8000C/CN/CD 

(4) Detaching and refitting the developing/cleaning brush bias high voltage unit 

Follow the procedure below to detach and refit the developing/cleaning brush bias high voltage unit. 



Procedure 

1 . Remove the MP tray unit (See page 1 -6-3). 

2. Remove five screws. 

3. Remove all (six) tabs and one connector from 
developing/cleaning brush bias high voltage 
unit. 

4. Remove the developing/cleaning brush bias 
high voltage unit. 

5. Replace the developing/cleaning brush bias 
high voltage unit and refit all the removed 
parts. 



Screws 



Developing/cleaning brush bias high voltage unit 




Figure 1-6-61 



1-6-40 



(5) Detaching and refitting the main charger high voltage unit 

Follow the procedure below to detach and refit the main charger high voltage unit. 



FS-8000C/CN/CD 



Procedure 

1 . Remove the power supply unit (See page 1 - 
6-38). 

2. Remove all (three) tabs and one connector 
from the main charger high voltage unit. 

3. Remove four screws and ground plate then 
remove the main charger high voltage unit. 

4. Replace the main charger high voltage unit 
and refit all the removed parts. 



Ground plate 



Connector 



Screw 




Figure 1-6-62 



1-6-41 



FS-8000C/CN/CD 

(6) Detaching and refitting the separation charger high voltage unit 

Follow the procedure below to detach and refit the separation charger high voltage unit. 



Procedure 

1 . Remove the engine controller PWB (See 
page 1-6-37). 

2. Remove the engine controller box (See page 
1-6-38). 

3. Remove four screws and then remove the 
controller box support. 

4. Remove the right cover (See page 1-6-3). 

5. Remove four screws and then remove the 
main controller box. 



Controller box support 




Main controller box 



Figure 1-6-63 



6. Remove all (five) tabs from the drive 
assembly A and two connectors from the feed 
drive PWB. 

7. Remove all harnesses from the harness 
holder. 

8. Remove two screws and then remove the 
harness holder. 



Harness holder 



Drive assembly A 




Tabs 
Connectors 
Feed drive PWB 

Screw 



Figure 1-6-64 



1 -6-42 



FS-8000C/CN/CD 



9. Remove one tab. 

10. Remove four screws and then remove 
the separation charger bias high voltage 
unit. 

1 1 . Remove one connector from the 
separation charger high voltage unit. 

12. Replace the separation charger high 
voltage unit and refit all the removed 
parts. 



Connector 



Screws 




Separation charger 
bias high voltage unit 



Screws 



Figure 1-6-65 



1 -6-43 



FS-8000C/CN/CD 

(7) Detaching and refitting the paper feeder/options relay PWB 

Follow the procedure below to detach and refit the paper feeder/options relay PWB. 



Procedure 

1 . Remove the rear cover (See page 1 -6-37). 

2. Remove all (six) connectors from the paper 
feeder/options relay PWB. 

3. Remove two screws and then remove the 
paper feeder/options relay PWB. 

4. Replace the paper feeder/options relay PWB 
and refit all the removed parts. 




Paper feeder/ 
options relay 
PWB 



Screws 



Figure 1-6-66 



(8) Detaching and refitting the transfer roller bias high voltage unit 

Follow the procedure below to detach and refit the transfer roller bias high voltage unit. 



Procedure 

1 . Remove the paper feeder/options relay PWB 
(See above). 

2. Remove one tab from the transfer roller bias 
high voltage unit. 

3. Remove two screws and then remove the 
transfer roller bias high voltage unit. 

4. Replace the transfer roller bias high voltage 
unit and refit all the removed parts. 




Transfer roller bias high voltage 



Figure 1-6-67 



1 -6-44 



FS-8000C/CN/CD 



1-6-11 Others 



(1) Detaching and refitting the ozone filter 

The ozone filter is included in the maintenance kit A and should be replaced at every 400,000 images of printing. Follow 
the procedure below to detaching and refitting the ozone filter. 



Procedure 

1 . While pressing the bottom of the filter duct, 
remove the filter duct. 

2. Push the [PUSH HERE] marking and then 
open the filter cover. 

3. Pull the [PULL] tag and then remove the 
ozone filter. 

4. Replace the ozone filter and refit all the 
removed parts. 




Figure 1-6-68 



1-6-45 



Chapter II 



CONTENTS 
2-1 Mechanical Construction 

2-1-1 Paper feed unit and secondary transfer unit 2-1-2 

(1) Paper feed unit 2-1-2 

(2) Secondary transfer unit 2-1-5 

2-1-2 MP tray unit 2-1-6 

2-1-3 Laser scanner unit 2-1-8 

2-1-4 Developer 2-1-10 

(1) Yellow developer 2-1-11 

(2) Magenta developer 2-1-14 

(3) Cyan developer 2-1-17 

(4) Black developer 2-1-20 

(5) Transition of toner for development 2-1-24 

2-1-5 Drum unit and main charger unit 2-1-25 

(1) Drum unit 2-1-25 

(2) Main charger unit 2-1-29 

2-1-6 Primary transfer unit 2-1-30 

(1) Primary transfer unit 2-1-30 

(2) Cleaning brush unit 2-1-30 

2-1-7 Fuser unit 2-1-35 

2-1-8 Face-down tray unit 2-1-38 



FS-8000C/CD/CN 

2-1-1 Paper feed unit and secondary transfer unit 

(1) Paper feed unit 

The paper feed unit includes several portions such as the paper feed section that drives the paper fed from the paper 
feeder or the duplex unit towards the secondary transfer unit, paper conveying section that moves the paper from the 
secondary transfer unit to the fuser unit, and the left paper guide that determines the destination of the paper which has 
passed through the fuser unit. A cam works to dress the transfer roller on the secondary transfer unit from the primary 
transfer unit in conjunction with color printing process, and a link lifts the secondary transfer unit when the paper feed 
unit is drawn in connection with the front cover. 




Figure 2-1-1 Paper feeder unit and secondary transfer unit 



© Paper conveying belts © 

© Paper conveying fan motor 1 (PCFM1 ) © 

® Paper conveying fan motor 2 (PCFM2) © 

© Feed PWB (FPWB) [KP-826] © 

© Paper conveying belt pulleys © 

© Secondary transfer unit shift clutch (STRSCL) © 

® Upper registration roller © 

® Lower registration roller © 

© Middle pulleys © 

© Middle roller © 
© Transfer roller 



Secondary transfer unit position sensor (STRPS) 

Cams 

Front transfer lever 

Rear transfer lever 

Tension rollers 

Paper conveying belt rollers 

Duplex paper exit selection solenoid (DUPEXSSOL) 

Left paper guide 

Change guide 

Secondary transfer unit 



2-1-2 



FS-8000C/CD/CN 

The paper feed section of the paper feed unit and the paper conveying section are driven by separate driving systems: 
Since the paper conveying section must be driven in synchronization with speeds that paper passes through the fuser 
unit, it is driven by the fuser unit drive motor (FUDM) that drives the fuser unit; whereas, the paper feed section is driven 
by the paper feed motor (PFM). The paper feed section has a longer pathway than the length of A4 or Letter size to allow 
variation of the paper feed speed. An A4 or Letter size sheet whenever it is on the paper conveying belts can be free 
from both the secondary transfer unit and the fuser unit. To stabilize this situation of the sheet, two fans (PCFM1 and 
PCFM2) are provided. The suction air flows through the punched holes on the conveying belts. 

The left-sided paper guide includes a change guide which is activated in conjunction with a solenoid that selects duplex 
exit for the paper (DUPEXSSOL) when duplex printing. This guides the paper towards the duplexer underneath the 
printer. 




Figure 2-1-2 Paper feed unit 



Middle roller 

© Middle pulleys 

® Registration sensor (REGS) 

@ Upper registration roller 

© Lower registration roller 

© Secondary transfer unit 

® Paper conveying belt pulleys 

©Tension rollers 



© Paper conveying fan motor 1 (PCFM1) 

© Paper conveying fan motor 2 (PCFM2) 

© Paper feed unit 

© Tension rollers 

(|| Paper conveying belt rollers 

© Paper conveying belts 

© Left paper guide 

© Change guide 



2-1-3 



FS-8000C/CD/CN 



High Meg. Resister 



Paper feed unit 
Secondary transfer unit 
Transfer roller 



TRHVU 



QT2 



Separation chager unit 



i 



STRPS 



T2INI 



GND 



BRCOM 



GND 



PCFM2 



VPP 
FANFP 



DUPEXS 



GND 



VUCT 



DUPEXSSOL 



EXITJD 
DUFDR 



VPP 



EXFDFT 



PCFM1 


VPP 


FANFP 





YC802 



FPWB 
[KP-826] 




YC803 



YC804 



YC805 



YC806 



YC801 



YC807 



YC808 



SCHVU 



s 



1 

2 

3 

4 

5 

6 

7- 

8 

9 

lO- 
ll - 
12 
13 
14- 



GND 



FDPWB 
[KP-822] 



YC702 



FEDEX 



FEEDS 
FANFP 



~VFP- 



JAMF 



1 
2 
3 
4 
5 

T2INI % 

WTBS ' 



9 
-10 
-11 
-12 

13 
-14 



EXITJD 



EXFDR 



~VPF~ 



DUFDR 



BRSET 



Figure 2-1-3 Paper feed unit block diagram 



2-1-4 



FS-8000C/CD/CN 

(2) Secondary transfer unit 

The secondary transfer unit includes the transfer roller and the separation charger unit. The transfer roller is used to 
transfer images of toner constituted by the primary transfer drum towards the paper. The separation charger gives the 
paper the repelling charge so that the paper is effectively scraped off of the primary transfer drum. 

The primary transfer drum is covered with the electroconductive sponge. At the beginning of transferring process, the 
drum is given a bias of approximately -20 microamperes and -0.5 to -2 kV generated by the high-voltage unit for the 
transfer roller (TRHVU). This bias is automatically adjusted according to the paper type currently selected. 

The separation charger unit has two thin wires which are given high voltage (Typical value: 450 V DC weighted by 12.75 
kV AC [p-p], generated by the high-voltage unit for separation charge (SCHVU), for generating the attracting charge for 
the paper. These wires are cleaned manually by the system including a pad. 

Since the primary transfer unit has to revolve four turns until four layers of different colored toner have been constituted, 
the secondary transfer unit should be dressed away from the primary transfer drum until all layers have been done. The 
secondary transfer unit therefore includes levers and springs for this purpose, which are driven by a cam and a clutch on 
the paper feed unit. 




Figure 2-1-4 Secondary transfer unit 



© Secondary transfer unit 

© Transfer roller lever front 

© Spring front 

@ Transfer roller lever rear 

© Spring rear 

© Transfer roller 



© Separation charger cleaner 

® Separation charger wires 

® Separation charger unit 

@ Separation charger shield 

© Separation charger cleaning knob 



2-1-5 



FS-8000C/CD/CN 

2-1-2 MP tray unit 

The MP tray unit includes sections of paper stack, paper feed, and paper detection. The paper detection is accomplished 
by two sensors mounted on the MP tray feed PWB (MPFPWB) that measures the width of the paper and detects the 
presence of paper. 

The MP tray includes a bottom plate and accommodates approximately 150 sheets of paper. When paper feeding is 
required, the solenoid for the MP bottom plate is activated (MPBSOL) to rotate the cam for the MP tray. The actuator for 
the cam pushes up the bottom plate which in turn pushes up the paper stack abut the feed roller. The activation of the 
bottom plate is detected as the cam revolves, using a reflection plate. 

The paper feed section includes a feed roller and a clutch (MPFCL). When the clutch is activated, the feed roller revolves 
and the bottom plate is raised to feed paper. The retard roller beneath the feed roller prevents that more than one sheet 
are fed at a time. 




Figure 2-1-5 MP tray unit 



© MP tray feed roller 

© MP tray retard roller 

fj) MP tray feed clutch (MPFCL) 

© MP tray bottom plate solenoid (MPBPSOL) 

© MP tray feed PWB (MPFPWB) 

© MP tray bottom plate position sensor (MPBPPS) 

® MP tray cam actuator 

©MP tray cam 

©MP tray bottom plate 



2-1-6 



FS-8000C/CD/CN 



MP tray unit 



EPWB 
[KP-801] 



YC28 



VCC 



MPFSET 



HANDS 



LONG 
GND 
VPP 
BTTRDR 



MPFDR 



MPFPWB 
[KP-832] 



YC901 



YC902 



(PH901) 
r~p MP tray 



(PH902) 



ivii— Tray 
paper width 
sensor 



E 



MP tray 

paper 

sensor 




Figure 2-1-6 MP tray feed unit block diagram 



2-1-7 



FS-8000C/CD/CN 

2-1-3 Laser scanner unit 

The laser scanner unit consists of a polygon mirror motor, laser diode, beam-detector unit, lenses, the automatic power 
controller board, etc. 




Figure 2-1-7 Laser scanner unit 



© APC PWB (APCPWB) 

© Laser diode 

©Collimator lens 

©Polygon mirror 

© Polygon motor (PM) 

©feiens 

©feiens 

® BD sensor mirror 

©Cylindrical correcting lens 

©PBPWB(PDPWB) 

(ff) Diversion mirror 



2-1-8 



FS-8000C/CD/CN 

©APCPWB: Laser power control. 

©Laser diode: Generates the laser beam (400 mW±30 %, 670 nm) which forms a latent image on the drum. 

© Collimator lens: Collimates the diffused laser beam emitted from the laser diode to convert it into a cylindrical beam. 

©Polygon mirror: Six-facet mirror that rotates at approximately 31690.52224 rpm with each face reflecting the laser 

beam toward the drum for one main-direction scan. 
©Polygon motor (PM): Rotation polygon mirror. 
©Fe lens: Corrects for non-linearity of the laser beam scanning speed on the drum surface, keeps the beam diameter 

constant and corrects for the vertical alignment of the polygon mirror to ensure that the focal plane of the laser beam 

is on the drum surface. 
©Fe lens: Corrects for non-linearity of the laser beam scanning speed on the drum surface, keeps the beam diameter 

constant and corrects for the vertical alignment of the polygon mirror to ensure that the focal plane of the laser beam 

is on the drum surface. 
® BD sensor mirror: Reflects the laser beam to the BD sensor [PDPWB] to generate the main-direction (horizontal) sync 

signal. 
©Cylindrical correcting lens: Corrects for the deviation of the laser beam reflected by the BD sensor mirror to the BD 

sensor [PDPWB]. 
@BD sensor [PDPWB]: Detects the beam reflected by the BD sensor mirror, outputting a signal to the main controller 

PWB (MPWB) to provide timing for the main-direction sync signal, 
(n) Diversion mirror: Reflects the laser beams onto the drum surface. 



EPWB 
[KP-801] 



YC5 



LASER5V 



5VDC 

regurator 

circuit 



VPP 



PSU 



24 V DC 

output 

circuit 



CN5 



CN7 



12 

11 
10 
9 
8 
7 
6 
5 
4 
3 
2 
1 



YC11 



VDO+ 



VDO- 



GND 



LASER5V 

LONB 

LEN 



POWSEL 



PD 



VPP 



SCNAER 
SCRDY 



SCCLK 



VPP 
VPP 



Laser scanner unit 



YC551 



ILSW 



\ VPPCOM 
4 VPPCOM 




APCPWB 
[KP-807] 

YC553 



YC552 



5 4321 



OOOz"n 

33ZD" 

i-o> 

3J 



1 2 3 
O"or- 

w m 



12 3 45 



CN1 




Polygon 
motor 



1 2 3 



YC581 

PDPWB 
[KP-838] 



Figure 2-1-8 Laser scanner unit block diagram 



2-1-9 



FS-8000C/CD/CN 

2-1-4 Developer 

The printer has developers in four colors - yellow, magenta, cyan, and black. Each of the developers except black has 
the respective toner container mounted directly, including the toner feed mechanism. Since the black developer has to be 
seated right underneath the drum unit, which prevents the black toner container directly mounted on the developer, the 
toner container is separated from the developer. 

To accomplish color print process, each developer implements developing in the specific color as the drum unit rotates a 
turn. While a color development is in process, the developers for other colors should be disabled. For this purpose, a 
shutter utilizing magnetism is provided for each developer that effectively close the gateway for the toner to the 
developing roller. When development for the specific color is not required, the magnet in the sleeve faces towards the 
developing roller by means of a spring. The magnet behaves as a shutter and prevents toner from being fed outwards as 
the magnet repels the toner. When development is required for the color, a solenoid is activated to turn the magnet so 
that the magnet is away 180 "from the developing roller. Then the toner is free to proceed over the developing roller 
towards the drum, forming a magnetic brush. 



Developing 

Magnetic force 



• •• Toner 




Drum 



Developer 



Developing roller 
(sleeve) 



Not developing 



• •• Toner 




Developer 



Developing roller 
(sleeve) 



Figure 2-1-9 Magnetic shutter 



2-1-10 



FS-8000C/CD/CN 

(1) Yellow developer 

The yellow toner container is directly mounted atop the yellow developer. As the yellow toner feed motor (YTFM) turns 
on to feed toner, the toner pours down in the toner hopper onto the paddle. The paddle drives toner to the mixer tube. 
The mixer tube has a mixer screw inside which revolves coaxially with the paddle. The mixer screw and the paddle rotate 
in the opposite direction to each other, ensuring the effective circulation of toner in the hopper. 

The developing roller has a 5-pole magnet and a sleeve located coaxially to the magnet. Toner is carried along the 
sleeve as it rotates and passed between the blade sleeve and the developing sleeve. The gap between the sleeves is 
adjusted so that a constant layer of toner is constituted over the developing roller. The magnetic brush is constituted at 
the opposite area circumferentially to pole N1 and flies toner over to the drum. 



Toner feed from 
yellow toner container 




Figure 2-1-10 Yellow developer 



© Developing roller 
©Toner feed paddle 
©Blade sleeve 
©Shutter magnet 
©Mixer tube 
©Mixer screw 
©Agitation paddle 



2-1-11 



FS-8000C/CD/CN 




Magnetic poles on the developing roller (0) 

N3 Gauss 

point 



N1:89.5±5mT 
S1 : 83.5±5 mT 
N2: 54.0±5 mT 
N3: 54.0±5 mT 
S2: 84.5±5 mT 




Figure 2-1-11 Yellow developer and magnetic poles on the developing roller 



© Developing roller 
©Toner feed paddle 
©Blade sleeve 
©Shutter magnet 
©Mixer tube 
©Mixer screw 
©Agitation paddle 
©Yellow T/C sensor (YTPCS) 
©Yellow toner container 



2-1-12 



FS-8000C/CD/CN 



EPWB 
[KP-801] 



YC23 



Yellow developer 



~T GND 
o GND 
j YTPD 
j LMT5V 
7 YTFMP 



A LM IOV 

g YTEMP 
2 YMAGD 



c YTEMP 
2 YMAGDR 
7 VPP 



7 VKK 

a YTMDR 
q YTMCOM 



YTPCS 




dlpcbhvu 

Qby 



CL 
O 
CD 
> 

<D 

"a 



Figure 2-1-12 Yellow developer block diagram 



2-1-13 



FS-8000C/CD/CN 

(2) Magenta developer 

The magenta toner container is directly mounted atop the magenta developer. As the magenta toner feed motor (MTFM) 
turns on to feed toner, the toner pours down in the toner hopper onto the paddle. The paddle drives toner to the mixer 
tube. The mixer tube has a mixer screw inside which revolves coaxially with the paddle. The mixer screw and the paddle 
rotate in the opposite direction to each other, ensuring the effective circulation of toner in the hopper. 

The developing roller has a 5-pole magnet and a sleeve located coaxially to the magnet. Toner is carried along the 
sleeve as it rotates and passed between the blade sleeve and the developing sleeve. The gap between the sleeves is 
adjusted so that a constant layer of toner is constituted over the developing roller. The magnetic brush is constituted at 
the opposite area circumferentially to pole N1 and flies over to the drum. 



Toner feed from 
magenta toner container 




Figure 2-1-13 Magenta developer 



© Developing roller 
©Toner feed paddle 
©Blade sleeve 
©Shutter magnet 
©Mixer tube 
©Mixer screw 
©Agitation paddle 



2-1-14 



FS-8000C/CD/CN 



Magnetic poles on the developing roller (0) 



N1:89.5±5mT 
S1 : 91 .5±5 mT 
N2: 63.0±5 mT 
N3:54.0±5mT N3 
S2:83.5±5 mT 



Gauss 
point 




Figure 2-1-14 Magenta developer and magnetic poles on the developing roller 



© Developing roller 

©Toner feed paddle 

©Blade sleeve 

©Shutter magnet 

©Mixer tube 

©Mixer screw 

©Agitation paddle 

©Magenta T/C sensor (MTPCS) 

©Magenta toner container 



2-1-15 



FS-8000C/CD/CN 



EPWB 
[KP-801] 



YC23 



Magenta developer 



18 
17 
16 
15 
14 
13 
12 
11 
10 


9 

8 
7 
6 
5 
4 
3 
2 
1 



GND 
GND 
MTPD 
r I LMT5V 

o r/iTCft/ic 



MTEMP 



MM AG PR 



^fp~ 



MTMPR 
MTMCOM 







YC632 






MPLPPWB 
[KP-815] 

YC63 


1 
2 
3 
4 












3 






YC631 


1 

2 
3 










1 

2 
3 
4 
5 
6 
7 
8 










YC636 


















1 
2 
3 







plpcbhvu 

-Hbm 



GNP 


MTPCS 


MTPP 


VPP 


MVCNT 






LMT5V 
VCRET 
LEPCC 



PQCOM 
MTEMP 
GNP 



o 



MTEMPS 
[KP-820] 



YC634 



YC635 



MTMCOM 


MTFM 


MTMPR 





VPP 


MPLPPCL 


MMAGPR 





Figure 2-1-15 Magenta developer block diagram 



2-1-16 



FS-8000C/CD/CN 

(3) Cyan developer 

The cyan developer, unlike the other color developers, has the toner container with a considerable offset in terms of 
mounting. Toner replenished by the cyan toner container is driven via a horizontal pathway into the hopper in the 
developer. As the motor for feeding toner turns on, toner begins driven in a free-fall fashion onto the toner supply screw 
which is joined with the motor for feeding the cyan toner. The toner supply screw horizontally relays the toner up to the 
mixer tube. The mixer tube has a mixer screw inside which revolves coaxially with the paddle. The mixer screw and the 
paddle rotate in the opposite direction to each other, ensuring the effective circulation of toner in the hopper. 

The developing roller has a 5-pole magnet and a sleeve located coaxially to the magnet. Toner is carried along the 
sleeve as it rotates and passed between the blade sleeve and the developing sleeve. The gap between the sleeves is 
adjusted so that a constant layer of toner is constituted over the developing roller. The magnetic brush is constituted at 
the opposite area circumferentially to pole N1 and flies over to the drum. 



Toner feed from 
cyan toner container 




Figure 2-1-16 Cyan developer 



© Developing roller 
©Toner supply screw 
©Blade sleeve 
©Shutter magnet 
©Mixer tube 
©Mixer screw 
©Agitation paddle 



2-1-17 



FS-8000C/CD/CN 



Magnetic poles on the developing roller (0) 



Gauss 
point 



N1:89.5±5mT 
S1:91.5±5mT 
N2: 63.0±5 mT 
N3: 54.0±5 mT 
S2:83.5±5mT 





Figure 2-1-17 Cyan developer and magnetic poles on the developing roller 



© Developing roller 
©Blade sleeve 
©Shutter magnet 
©Agitation paddle 
©Mixer tube 
©Mixer screw 
© Cyan T/C sensor (CTPCS) 
® Cyan toner container 



2-1-18 



FS-8000C/CD/CN 



EPWB 
[KP-801] 



YC22 



1 
2 
3 
4 
5 
6 
7 
8 
9 
10 



Cyan developer 



1 
2 
3 
4 
5 
6 
7- 
8 
9 
10 



GND 



GND 



CTPD 
LMT5V 
CTEMP 
CMAGDR 



VPP 



CTMDR 



CTMCOM 



YC632 



CDLPPWB 
[KP-815] 



YC633 



YC631 



YC636 



YC634 



YC635 



GND 



CTPD 



VPP 



CVCNT 



LMT5V 



VCRET 



LEDCC 



PQCOM 



CTEMP 



GND 



CTMCOM 
CT MDR 



CTPCS 



DLPCBHVU 

Q BC 



CTEMPS 
[KP-819] 



CTEMPS 
[KP-820] 



O 



CTFM 



VPP 
CMAGDR 



CDLPDCL 



Figure 2-1-18 Cyan developer block diagram 



2-1-19 



FS-8000C/CD/CN 

(4) Black developer 

Since the black developer has to be seated right underneath the drum unit, which prevents the black toner container 
directly mounted on the developer. The toner container is located in area above the primary transfer unit. Toner feeding 
from the toner container to the developer unit is accomplished by the feed assembly which includes a tube through which 
the toner is conveyed. 



Toner feed from the black toner container 




Figure 2-1-19 Black developer 



© Developing roller 

©Blade sleeve 

©Shutter magnet 

©Mixer tube 

©Mixer screw 

© Black toner feed motor (KTFM) 



©Black toner intermediate hopper sensor (KTIHS) 

©Toner feed magnet roller 

® Intermediate toner hopper 

© Black toner feed assembly 

© Black toner container feed assembly 



2-1-20 



FS-8000C/CD/CN 

The black developer has an intermediate toner hopper inside. The toner temporarily stored in this intermediate hopper is 
driven to the mixer tube in the toner hopper by means of the magnet roller. The mixer tube which has a mixer screw 
inside which revolves coaxially with the mixer tube redistributing toner in the opposite directions. Redistributing toner 
also positive-charges the toner owing to static electricity. The charged toner is then sent to the developing roller. Since 
the black developer has its developing roller at its top, toner must be escalated from the hopper to the developing roller. 
To accomplish this, the black toner is slightly magnetized and an intermediate (3-pole) magnet roller is provided in the 
middle of the developing chamber. The black toner is attracted by magnetism by this intermediate magnet roller, 
escalated, and fed to the developing roller. 

The developing roller has a 5-pole magnet and a sleeve which rotates coaxially to the magnet. Toner is carried along the 
sleeve as it rotates and passed between the blade sleeve and the developing sleeve. The gap between the sleeves is 
adjusted so that a constant layer of toner is constituted over the developing roller. The magnetic brush is constituted at 
the opposite area circumferentially to pole N1 and flies over to the drum. 



Magnetic poles on the developing roller (0) 

N1 




Gauss 

point 




N1:89.5±5 mT 
S1 : 79.5±5 mT 
N2: 54.0±5 mT 
N3:51.0±5 mT 
S2: 87.5±5 mT 



Magnetic poles on the magnet roller ((f)) 



N1:60.0±7.0 mT 
S1: 47.0±7.0 mT 
S2: 43.0 +|-g mT 



Figure 2-1-20 Black developer and magnetic poles on the developing roller 

© Developing roller 

©Magnet roller 

©Blade sleeve 

©Shutter magnet 

©Mixer tube 

©Mixer screw 

© Black T/C sensor (KTPCS) 

©Toner feed magnet roller 

©Agitation paddle 

©Black developer PWB (KDLPPWB) [KP-817] 

© Intermediate toner hopper 



2-1-21 



FS-8000C/CD/CN 



EPWB 
[KP-801] 



YC22 



Black developer 



20 


ir 


19 


9 


18 


8 


1/ 


7 


16 


6 


15 


5 


14 


4 


13 


3 


12 


2 


1 


1 



DLKSET 



TSN\T 



T5NIT 
LMT5V 



KTMDR 



KTMCOM 



KTEMP 



KTPD 



KMAGDR 
VPP 



KDLPPWB 
[KP-817] 



YC652 



YC651 



1 
2 
3 
4 
5 
6 
7 
8 
9 
10 



YC653 



YC654 



YC655 




DLPCBHVU 



DESK 



Figure 2-1-21 Black developer block diagram 



2-1-22 



Engine control for black toner development 



FS-8000C/CD/CN 



Black toner container 



KDLPDM 




-JWW 



-wwwv^ 



Black toner feed assembly 



EPWB 



Intermediate 
toner hopper 



Gate array CPU 



Driver 



o 



Figure 2-1-22 Black developer block diagram 



CPU on the engine controller PWB (EPWB) watches the amount of the black toner by means of a sensor (IMTHS) in the 
intermediate toner hopper in the black developer. When the black toner dwindles, the clutch (KTFCL) that feeds the black 
toner is activated to feed toner from the black toner container to the feed assembly for the black toner. Toner is fed by a 
screw in the feed assembly for the black toner. The feed assembly for the black toner is driven by a motor (KDLPDM) 
and passed to the intermediate hopper in the black developer. 



2-1-23 



FS-8000C/CD/CN 

(5) Transition of toner for development 

Toner, basically a charged ink in positive polarity, travels through the developer through the primary transfer unit, and 
finally transferred on paper, all by means of voltage differences. The diagram below shows how the toner moves from the 
developer to the paper in a delicate balance among the biases. 



Laser beam 



@-0.7kVAC(p-p) 



Vo- 


-© 


VBias - 


-© 


Vl- 
Ti - 





Gnd — (5 




Laser beam 



I s I Main charger 




Frame 
ground 



T2— © 



-20 u.A (-0.5 to -2 kV) 



Paper 



Secondary transfer (roller) 



• ••: Toner (positive-charged) 
: Main charge on the drum 
Vo: Drum surface voltage (©) 

(Yellow: 330 V, Magenta and Cyan 340 V, Black: 420 V) 
Vl: Exposed drum surface voltage (©) 
VBias: Developing bias DC + AC (©) 

([Yellow: 1 40 V, Magenta and Cyan: 1 60 V, Black: 240 V DC] + 0.7 kV AC, f= 3.6 kHz) 
T1: Drum base voltage (@) 

(variable by temperature and humidity) 
Gnd: Frame ground (©) 
T2: Secondary transfer bias (©) 

(adjusted according to paper type) 



Figure 2-1-23 Transition of toner for development 



2-1-24 



FS-8000C/CD/CN 

2-1-5 Drum unit and main charger unit 

(1) Drum unit 

The drum unit includes the photoconductor (0 80 mm), cleaning system, eraser system, etc. Amorphous-silicon material 
is used for the photoconductor. During the electrophotographic process, the photoconductor is charged with high voltage 
dispersed by the main charger wire. On the flange located at the back of the drum unit are 1 8 pins which are used for 
interrupters to the offset drum sensor (ODS). These pins and the sensor generate the pulse signal which is used as the 
reference at which the drum begins revolution. 

The residual toner on the drum unit is scraped off by the cleaning blade and removed by the cleaning roller. The cleaning 
roller is directly in contact with the drum and rotates twice faster than the drum unit in the opposite direction, effectively 
polishing the drum. The waste toner is driven outwards by a screw. 

The eraser lamp (EL) disperses the light over the drum to quench the residual charge when image transfer has finished. 

The drum unit includes a PWB on which a EEPROM is held to store data such as the drum sensitivity and maintain the 
serial number, life count, etc., proprietary to the individual drum unit. The drum sensitivity information is utilized for 
compensation of the main charging magnitude specifically to the individual drum. The innate image quality is not 
obtainable in case the photoconductor is replaced in the drum unit. 




Figure 2-1-24 Drum unit 



© Drum 

©Cleaning blade 

©Eraser lamp (EL) 

©Drum PWB (DRPWB) [KP-813] 

© Offset drum sensor (ODS) 



2-1-25 



FS-8000C/CD/CN 




Figure 2-1-25 Drum unit 



© Drum unit 

©Eraser lamp (EL) 

©Cleaning blade 

©Cleaning roller 

©Waste toner exit screw 

©Drum 

©Main charger unit 



2-1-26 



FS-8000C/CD/CN 



The printer use the long lasting amorphous silicon drum. The drum surface is a composite of five 
substances coated in five layers as shown below. 



© © ® © 




Figure 2-1-26 Amorphous silicon drum layer 

©Aluminum base 

©Carrier block (1 to 3 urn thick) 

® Photoconductor a-Si 

© Primary protection layer (1 u,m thick) 

© Secondary protection layer 

The primary and secondary layers are for protecting the amorphous silicon layer underneath. The amorphus silicon layer 
is of photoconductive, meaning it can be electronically conductive when exposed to a (laser) light source to effectively 
ground electrons charged on its outer surface to the ground. This layer is approximately 9 urn thick. The carrier block 
layer lies between the amorphous silicon layer and the aluminum base cylinder and prevents the backward electron flow, 
from the base cylinder to the drum's outer surface, which might give adverse effect (possibly "ghost") on the print quality. 



DLPCBHVU 
T1 

— n — 



ODS 



DROPS 
VCC 



GND 



EL 



GND 
ERSDFT 



Main charger unit 
Charger wire 



Grid 



-n 



Drum 



Drum unit 



DPWB 
[KP-813] 



YC621 



EEPROM 



YC622 



YC623 



1 - 

2 - 
3 

4 
5 

6 - 

7 - 

8 - 

9 - 
10 
11 - 
12- 



GND 



ERSDR* 



DROPS 
VCC 



GND 



DRECS 



DRECLK 



DREDI 

DREDO 

DFSCUT 



EPWB 
[KP-801] 



YC17 



3 
4 
5 
6 
7 
8 
9 
10 




Figure 2-1-27 Drum unit and main charger unit block diagram 



2-1-27 



FS-8000C/CD/CN 

Dark decay 

The main charge to the drum is delicately controlled by adjusting both the high voltage (+6 to +7 kV) and the potential at 
the main charger grid. The potential developed at the surface of the drum is also affected by the inherent sensitivity of 
the drum. The charge on the surface of the drum decreases as time passes by at the rate of approximately 100 V per 
second, known as the "dark decay." Since the developer units are located over different distances around the drum's 
circumference, to maintain the target surface potential (150 V for yellow, 160 V for magenta and cyan, and 240 V for 
black) in the area on the drum where development for specific color occurs, the main charging is controlled in 
compensation with the dark decay for each color. 



+6 to +7 kV 




^ 



Main charger shield 
Main charger wire 



Drum 



G M 

Main 

charger 

high 

voltage 

unit 



450 V 
Drum base voltage) 



Figure 2-1-28 Dark decay 



2-1-28 



FS-8000C/CD/CN 

(2) Main charger unit 

The main charger unit is devised at the top of the drum unit, consisting of a wire, grid, and a shield. The main charger 
disperses +6 kV to +7 kV high voltage over the drum in the beginning of the electrophotographic cycle. To clean the main 
charger wire of carbon dioxide, a manual cleaning system is provided. 





Figure 2-1-29 Main charger unit 



© Main charger shield 
© Main charger cleaning knob 
© Main charger cleaner 
©Main charger wire 
©Main charger grid 



2-1-29 



FS-8000C/CD/CN 

2-1-6 Primary transfer unit 

(1) Primary transfer unit 

The primary transfer unit has the primary transfer drum, as the main part, and the cleaning brush unit. The primary 
transfer drum is an aluminum cylinder, covered by the electroconductive sponge, and outermostly by the fluorine-coated 
rubber. The primary transfer drum is 160 mm diametric; whereas the photoconductor drum is 80 mm diametric, having a 
diameter ratio of 2 to 1 . One rotation of the photoconductor drum can produce one page of A4 or Letter image over the 
half circumference of the primary transfer drum. In other words, the primary transfer drum can have two pages of A4 or 
Letter size; or one page of A3 or Ledger size at a time. 




Figure 2-1-30 Primary transfer unit 

© Primary transfer drum 

© Image density sensor (IDS) 

©Cleaning brush 

@ Exit screw 

©Cleaning brush unit 



(2) Cleaning brush unit 

The cleaning brush unit contains the cleaning brush, cleaning roller, scrapers, and a spiral screw, and acts to remove 
and recollect the residual toner on the primary transfer drum. Note that the residual toner is removed not by being 
scraped off but by the electrostatic attraction. The cleaning brush is applied via the cleaning roller with the -600 V bias. 
Since the toner is positively biased, it is attracted to the cleaning brush. The residual toner attracted onto the cleaning 
brush is then scraped off by a blade and passed to the exit screw which in turn drives the toner to the waste toner duct. 

A color image is constituted by four images of different colors overlapped one by one. The cleaning brush therefore must 
be dressed away from the primary transfer drum while a color image is being laid over the primary transfer drum before 
the subsequent transferring process. This is accomplished by a cam which is driven by the cleaning brush unit shift 
solenoid (CBSSOL) for the cleaning brush. 



2-1-30 



FS-8000C/CD/CN 



Rubber 
(Fluorine coated) 



Sponge 
(Electroconductivity) 




Figure 2-1-31 Primary transfer drum layer 




Figure 2-1-32 Primary transfer unit 



© Primary transfer drum 

© Image density sensor (IDS) 

©Cleaning brush 

@ Exit screw 

©Cleaning roller 

©Cleaning brush blade 

©Cleaning brush unit 



2-1-31 



FS-8000C/CD/CN 



DLPCBHVU 



CB 



EPWB 
[KP-801] 



YC16 



71 LMT5V 
k GND 
o ANIDSIO 
j ANIDSI1 
5 IDLED 



1 

2 
3 
4 
5 


Image 

density 

sensor 



Primary 

transfer 

drum 




Primary transfer unit 



Cleaning brush unit 



Figure 2-1-33 Primary transfer unit block diagram 



2-1-32 



FS-8000C/CD/CN 

Color print process 

In color printing, an image in each color is constituted over the drum unit one after another. Each image is developed by 
toner and transferred onto the primary transfer drum until four layers of cyan, magenta, yellow, and black are constituted 
over the primary transfer drum. The color layers are constituted on the primary transfer drum in the order of yellow 
(bottom-most), magenta, cyan, and black (top-most). 

The photoconductor drum can create an A4 image in two revolutions. (The diametric ratio for the photoconductor drum 
and the primary transfer drum is 1 to 2.) The primary transfer drum can complete two A4 or Letter size image in one 
revolution, or one A3 or Ledger size image in one revolution. 

A3 size paper color printing process 




LlJ© Tr2 




Repeat* 



TiJW 



Dr. Drum 

Y: Yellow developer [Toner 
M: Magenta developer [Toner 
C: Cyan developer [Toner H 
K: Black developer [Toner ^| 



Tr1 : Primary transfer (drum) 
Tr2: Secondary transfer (roller) 
p1 : The first page image 
p2:The second page image 
p3: The third page image 



Figure 2-1-34 A3 size paper color printing process 

Two-page mode 

Two-page mode is the way the printer prints two A4 or Letter size images in a single revolution of the primary transfer 
drum, ensuring 30 ppm for monochrome or 8 ppm for color printing speeds. 

Two pages of A4 or Letter size are laid side by side over the primary transfer drum in the order of yellow, magenta, cyan, 
and black as explained previously. For the fullest efficiency of printing, the printer prints these two pages in a way 
explained in Figure 2-1-35. 

Table 2-1-1 



Drum revolution 


Page 


Color 


Page printed 


1 


1 


Yellow 


i 


2 


1 


Magenta 


i 


3 


1 


Cyan 


i 


4 


2 


Yellow 


i 


5 


1 


Black 


i 


6 


2 


Magenta 


1 


7 


3 


Yellow 


i 


8 


2 


Cyan 


i 


9 


3 


Magenta 


i 


10 


2 


Black 


i 


11 


3 


Cyan 


2 



2-1-33 



FS-8000C/CD/CN 

A4/Letter size paper color printing process (Two-page mode) 






LlJ© Tr2 




LI© Tr2 



Repeat* 



Dr: Drum 

Y: Yellow developer [Toner 
M: Magenta developer [Toner 
C: Cyan developer [Toner H 
K: Black developer [Toner ■ 



Tr1: Primary transfer (drum) 
Tr2: Secondary transfer (roller) 



P1 
p2 

P3 



The first page image 
The second page image 
The third page image 



Figure 2-1-35 A4/Letter size paper color printing process (Two-page mode) 



2-1-34 



FS-8000C/CD/CN 



2-1-7 Fuser unit 



The fuser unit is detachable and mounted on the left-most end of the paper feed unit. The fuser unit literally fuses toner 
on the paper by means of heat and pressure following the transferring process of the electrophotographic cycle. 

The fuser has the oil roller unit at the top, which is activated during fusing is in process and lowers the oil roller down 
onto the top roller so that the oil is applied onto the paper. 

Both the heat roller and the press/heat roller are of soft type (0 45 mm) and in contact with each other with a nip of 
approximately 10 mm. The nip is required to apply a sufficient heat capacity to the paper in color printing. Both rollers 
have a 500 W heater inside. Paper is pinched between these rollers for permanently fusing images. 

The fusing temperature is controlled as the thermistor for the top roller and the bottom roller signals the engine controller 
PWB. The heaters are activated in PWM (Pulse-Width Modulation) system depending on the temperature the two 
thermistor detect and report. The rollers are driven by a dedicated fuser motor. To optimize fusing depending on paper 
type, the revolution of the rollers are changed accordingly in half the normal speed for thick paper; quarter the normal 
speed for transparencies. 




Figure 2-1-36 Fuser unit section 



© Upper heater lamp (UHL) 


© Exit pulley 


© Lower heater lamp (LHL) 


@ Exit roller 


© Heat roller 


©Oil roller 


© Press/heat roller 


@ Oil roller cam 


© Upper thermostat (UTHS) 


© Exit roller gear 


© Lower thermostat (LTHS) 


© Idle gear 


© Fixing heater (FH) 


© Idle gear 


® Upper fuser thermistor (UFTH) 


© Fuser gear 


@ Lower fuser thermistor (LFTH) 


© Input gear 


© Oil roller up/down solenoid (ORUDSOL) 





2-1-35 



FS-8000C/CD/CN 




Figure 2-1-37 Fuser unit section 



© Oil roller 

© Heat roller 

® Press/heat roller 

© Upper heater lamp (UHL) 

© Lower heater lamp (LHL) 

© Upper separator 

© Lower separator 

© Exit pulley 

® Exit roller 



2-1-36 



FS-8000C/CD/CN 



LHL 



Fuser unit 



Oil roller unit 



OILEX 



YC21 



ORUF 



FFCUT 



srucr 



LTHS 



UHL 




ORUDSOL 



WEBL 

VPP 

WEBU 



YC604 



UFTH 



LFTH 



FTREF 
THERMU 



FTREF 



YC601 



THERML 



YC602 



YC603 



FUPWB 
[KP-811] 



UTHS 



HEATFL 



CN2 



HEATL 



HEATFU 



HEATL 



PSU 



FTREF 

THERMU 

THERML 



EPWB 
[KP-801] 



YC20 



WEBU 



WEBL 



VPP 



Figure 2-1-28 Fuser unit block diagram 



2-1-37 



FS-8000C/CD/CN 

2-1-8 Face-down tray unit 

The face-down tray unit changes the destination the printed pages are stuck. For face-down, the paper is guided along 
the change guide vertically into the face-down tray. In face-up, a solenoid is activated (FUDSOL) to manipulate the 
change guide so that the paper is sent horizontally in the face-up tray. 



To face-down tray 




Figure 2-1-39 Face-down tray unit 



© Face-down PWB (FDPWB) [KP-828] 

© FD roller 

© Exit AL pulley 

© Exit BL pulley 

© FD pulley gear Z1 8 

© Gear Z26 

® Input gear Z24 

© Gear Z22 

® Change guide 

© FU roller 

© Face up/down solenoid (FUDSOL) 



2-1-38 



FS-8000C/CD/CN 




Figure 2-1-40 Face-down tray unit 



© FD roller 

© Exit AL pulley 

© Exit BL pulley 

© FU roller 

@ Change guide 

© Face-up tray 



2-1-39 



FS-8000C/CD/CN 



Face-down unit 



EPWB 
[KP-801] 



UPEXS 



LPEXS 




PFULL 



LCSWPWB 
[KP-809] 



<] 



\ 



(SW581) 
Face-up 
tray switch 

(SW582) 
Side cover 
switch 



YC587 



FUDSOL 



FUSET 
VPP " 
FDSET 



FDFM 



EXITJU rg 

GND o 

_EJUCOM_7 

EXITJL R 
GND g 

EJLCOM % 



GND 
RFLCOM 



CVRUP r 
CVRLW 

gnd : 



FANFCDi 
VPP 



YC832 



YC831 



11 - 
10 

9 

8 

7 - 

6 

5 

4 

3 

2 

1 - 



YC834 



FDPWB 
[KP-828] 



YC833 



YC835 



YC18 



VCC 
GND 
EXITJU 
EXITJL 



PFULL 



CVRUP 



CVRLW 



FUSET 
FDSET 
VPP 
FANFCD 



1 

2 

3 

4 

5 

6 

7 

8 

9 

10 

11 



Figure 2-1-41 face-down unit block diagram 



2-1-40 



CONTENTS 
2-2 Electrical Parts Layout 

2-2-1 Electrical parts layout 2-2-2 

(1) Main frame, Face-down unit, and MP tray unit 2-2-2 

(2) Developers, drum unit, and main charger unit 2-2-3 

(3) Primary transfer, secondary transfer, paper feed, and fuser units 2-2-5 

(4) Main frame rear and controller box 2-2-6 



FS-8000C/CN/CD 

2-2-1 Electrical parts layout 

(1) Main frame, Face-down unit, and MP tray unit 

<fD (3) (J 




Figure 2-2-1 Main frame, Face-down unit, and MP tray unit 

1. PD PWB (PDPWB) [KP-838] Detects laser beam. Generates the horizontal sync output. 

2. APC PWB (APCPWB) [KP-807] Controls the laser beam output. 

3. Operation panel PWB (OPPWB) [KP-805] .. Displays LCD messages and LED indicators. Controls key inputs. 

4. MP tray feed PWB (MPFPWB) [KP-832] Detects the paper and its width in MP tray. Activates electrical components. 

5. Waste toner full sensor PWB 

(WTFSPWB) [KP-849] Detects the waste toner bottle being full. 

6. Left cover switch PWB (LCSWPWB) 

[KP-809] Monitors whether the face-up tray and the side cover is open. 

7. Face-down PWB (FDPWB) [KP-828] Relays wirings for the face-down tray unit electrical components. 

8. Black toner empty sensor PWB 

(KTESPWB) [KP-895] Monitors toner in the black toner container (emitter) 

9. Black toner empty sensor PWB 

(KTESPWB) [KP-896] Monitors toner in the black toner container (receptor) 

10. Developing/cleaning brush bias high 

voltage unit (DLPCBHVU) Generates the developing bias and the primary transfer cleaning brush bias. 

11. Paper full sensor (PFS) Detects whether the face-down tray is full. 

1 2. Humidity/temperature sensor (HUMTEMPS) Detects the ambient temperature and humidity. 

1 3. MP tray bottom plate position sensor (MPBPPS) . Detects MP tray bottom plate position. 

14. Middle paper feed sensor (MPFS) Detects paper jam at the paper feed unit. 

1 5. Lower paper exit sensor (LPEXS) Detects paper jam at the face-up tray unit. 

16. Upper paper exit sensor (UPEXS) Detects paper jam at the left cover. 

1 7. Oil roller unit detection terminal (ORDT) Connects the oil roller unit (fuse); and its fuse to blow when a new oil roller unit is 

installed. 

18. Interlock switch (INTLSW) Monitors whether the front cover is open and the 24 V DC power. 

1 9. MP tray bottom plate solenoid (MPBPSOL) Activates the MP tray bottom plate. 

20. Face up/down solenoid (FUDSOL) Switches the output stack between face up and face down. 

21. MP tray feed clutch (MPFCL) Controls drive chain to the MP tray feed roller. 

22. Polygon motor (PM) Revolves the polygon mirror. 

23. Face-down unit fan motor (FDFM) Dissipates the heated air in the printer. 



2-2-2 



(2) Developers, drum unit, and main charger unit 



FS-8000C/CN/CD 




Cyan developer 



Black developer 



Figure 2-2-2 Developers, drum unit, and main charger unit 



2-2-3 



FS-8000C/CN/CD 

1. Drum PWB (DRPWB) [KP-813] Accommodates the individual information for the drum including the light sensitivity, 

serial number, etc. 

2. Yellow developer PWB (YDLPPWB) [KP-847] Relays wirings for the electrical component in the yellow developer. 

3. Magenta developer PWB (MDLPPWB) [KP-815]. Relays wirings for the electrical component in the magenta developer. 

4. Cyan developer PWB (CDLPPWB) [KP-815] Relays wirings for the electrical component in the cyan developer. 

5. Black developer PWB (KDLPPWB) [KP-817] Relays wirings for the electrical component in the black developer. 

6. Yellow T/C sensor (YTPCS) Measures the toner concentration in the hopper for the yellow developer. 

7. Magenta T/C sensor (MTPCS) Measures the toner concentration in the hopper for the magenta developer. 

8. Cyan T/C sensor (CTPCS) Measures the toner concentration in the hopper for the cyan developer. 

9. Black T/C sensor (KTPCS) Measures the toner concentration in the hopper for the black developer. 

10. Offset drum sensor (ODS) Detects the home position for the drum at which revolution begins. 

11. Yellow toner empty sensor (YTEMPS) 

[KP-819] Measures toner in the yellow toner container (emitter). 

1 2. Magenta toner empty sensor (MTEMPS) 

[KP-819] Measures toner in the magenta toner container (emitter). 

13. Cyan toner empty sensor (CTEMPS) 

[KP-819] Measures toner in the cyan toner container (emitter). 

14. Black toner Intermediate hopper sensor 

(KITHS) Measure toner in the intermediate hopper for the black developer. 

15. Yellow toner empty sensor (YTEMPS) 

[KP-820] Measures toner in the yellow toner container (receptor). 

1 6. Magenta toner empty sensor (MTEMPS) 

[KP-820] Measures toner in the magenta toner container (receptor). 

1 7. Cyan toner empty sensor (CTEMPS) 

[KP-820] Measures toner in the cyan toner container (receptor). 

18. Yellow toner feed motor (YTFM) Replenishes the yellow developer with toner. 

19. Magenta toner feed motor (MTFM) Replenishes the magenta developer with toner. 

20. Cyan toner feed motor (CTFM) Replenishes the cyan developer with toner. 

21. Black toner feed motor (KTFM) Replenishes the intermediate toner hopper for the black developer with toner. 

22. Yellow developer drive clutch 

(YDLPDCL) Drives the yellow developer. 

23. Magenta developer drive clutch 

(MDLPDCL) Drives the magenta developer. 

24. Cyan developer drive clutch (CDLPDCL) .... Drives the cyan developer. 

25. Black developer drive clutch (KDLPDCL) .... Drives the black developer. 

26. Eraser lamp (EL) Discharges the drum. 



2-2-4 



FS-8000C/CN/CD 



(3) Primary transfer, secondary transfer, paper feed, and fuser units 

(ill 

Fuser unit 




Paper feed unit 



Figure 2-2-3 Primary transfer, secondary transfer, paper feed, and fuser units 



1. Feed PWB (FPWB) [KP-826] Controls electrical components in the paper feed unit. 

2. Fuser PWB (FUPWB) [KP-811] Relays wirings from electrical components on the fuser unit. 

3. Image density sensor (IDS) Measures image density for color calibration. 

4. Registration sensor (REGS) Determines the starting point for registration. 

5. Secondary transfer unit position 

sensor (STRPS) Determines the starting point for secondary image transferring. 

6. Duplex paper exit sensor (DUPEXS) Detects paper jam at the outlet for the duplexer. 

7. Upper fuser thermistor (UFTH) Measures the upper heat roller temperature. 

8. Lower fuser thermistor (LFTH) Measures the lower heat roller temperature. 

9. Paper conveying fan motor 1 (PCFM1) Attracts paper towards the conveying belt, 1. 

1 0. Paper conveying fan motor 2 (PCFM2) Attracts paper towards the conveying belt, 2. 

1 1 . Secondary transfer unit shift clutch 

(STRSCL) Controls recessing the secondary transfer unit. 

12. Duplex paper exit selection solenoid 

(DUPEXSSOL) Switches the flap for guiding paper to the duplexer. 

13. Oil roller up/down solenoid (ORUDSOL) Controls recessing the oil roller. 

14. Upper thermostat (UTHS) Disable power for the upper heater lamp in emergency. 

15. Lower thermostat (LTHS) Disable power for the lower heater lamp in emergency. 

16. Upper heater lamp (UHL) Energize the upper heat roller. 

17. Lower heater lamp (LHL) Energize the lower heat roller. 

18. Oil roller unit fuse (ORF) Blows off when inserted in the fuser unit (counter reset). 



2-2-5 



FS-8000C/CN/CD 

(4) Main frame rear and controller box 




Main controller box 



Figure 2-2-4 Main frame rear and controller box 



2-2-6 



FS-8000C/CN/CD 

1 . Main controller PWB (MPWB) [KP-800] Implements firmware for managing data processing for printing, interface with PC and 

the network, etc. 

2. System DIMM PWB (DIMMPWB) [KP-689] System program (firmware). 

3. Engine controller PWB (EPWB) [KP-801 ] .... Controls printer hardware including electrical components. 

4. Engine-main controllers relay PWB 

(EMRYPWB) [KP-802] Interconnects the engine controller PWB and the main controller PWB. 

5. Main drive PWB (MDPWB) [KP-824] Controls the developer units, solenoids for the primary transfer unit, and clutches. 

6. Feed drive PWB (FDPWB) [KP-822] Interconnects the electrical components paper in the paper feed unit. 

7. Paper feeder/options relay PWB (PFRYPWB) 

[KP-830] Interconnects the bottom-mounted options and paper exit options. Drives the fuser 

motor. 

8. Power supply unit (PSU) Receives AC mains supply and converts into 5 V DC and 24 V DC. 

9. Network interface card (NIC)* Interfaces with the network. 

10. Separation charger high voltage 

unit (SCHVU) Generates the separation charger high voltage. 

11. Main charger high voltage unit (MCHVU) Generates the main charger high voltage. 

12. Transfer roller bias high voltage unit 

(TRHVU) Generates the transfer roller bias. 

13. Cleaning brush unit position sensor (CBPS) Detects the position of the cleaning brush unit. 

14. Power switch (POWSW) Switches AC power input on and off. 

15. Yellow developer magnet solenoid 

(YDLPMSOL) Activates the magnetic brush for development (by repositioning the magnet), yellow. 

16. Magenta developer magnet solenoid 

(MDLPMSOL) Activates the magnetic brush for development (by repositioning the magnet), 

magenta. 

17. Cyan developer magnet solenoid 

(CDLPMSOL) Activates the magnetic brush for development (by repositioning the magnet), cyan. 

18. Black developer magnet solenoid 

(KDLPMSOL) Activates the magnetic brush for development (by repositioning the magnet), black. 

19. Cleaning brush unit sift solenoid 

(CBSSOL) Controls recessing the cleaning brush unit. 

20. Cleaning brush unit drive clutch (CBDCL) ... Controls driving the cleaning brush unit. 

21. Black toner feed clutch (KTFCL) Controls driving the black toner container and the black toner feed assembly. 

22. Registration clutch (REGCL) Controls driving the registration roller. 

23. Paper feed clutch (PFCL) Controls driving the paper feed roller. 

24. Fuser unit drive motor (FUDM) Controls driving the fuser unit and the conveying belts in the paper feed unit. 

25. Color developers drive motor (CDLPDM) .... Drives the yellow, magenta, and cyan developers. 

26. Black developer drive motor (KDLPDM) Drives the black developer. 

27. Main drive motor (MDM) Drives the drum unit. 

28. Paper feed motor (PFM) Drives the paper feed unit. 

29. Power supply unit fan motor (PSFM) Dissipates heat in the power supply unit. 

30. Main controller box fan motor (MFM) Dissipates heat from the main controller PWB. 

31. Fuser unit fan motor (FUFM) Dissipates heat from the fuser unit. 

32. AC inlet Inputs AC mains supply. 

33. Hard disk unit (HDD)* Holds print jobs. 

34. Expanding memory (DIMM)** For expanding main RAM. 



Standard installed for FS-8000CD model only. 
': Option 



2-2-7 



FS-8000C/CD/CN 

CONTENTS 
2-3 PWB Operation and Connector Signal Assignment 

2-3-1 Engine controller PWB [KP-801] 2-3-2 

2-3-2 Main controller PWB [KP-800] 2-3-11 



2-3-1 



FS-8000C/CD/CN 

2-3-1 Engine controller PWB [KP-801] 



Engine controller PWB 



SYSCLK 



32.7680 MHz 



CPU 
(U2) 



3~E 



65.5360 MHz 



SMMC 
(U21) 



65.5360 MHz 



Address/Data multiplex bus AD[15..0] 



ASIC1 
(U7) 



Address bus Adr[1 5.. 1] 



ASIC2 
(U8) 



VCLK 



35.8609 MHz 



Video 
control 



Port 
control 



Flash ROM 
(U10) 
2MB 



Status 
back-up 



CPU 
(U26) 



Option unit 
control 



APC PWB 



Motors, clutches, solenoids, 
sensors, HVUs, PWBs, etc. 



Document finisher, 
mailbox sorter, or 
bulk stacker 



Figure 2-3-1 Engine controller PWB [KP-801] block diagram 



2-3-2 



FS-8000C/CD/CN 



Connector signal assignment 



Connector 


Pin No. 


Signal 


I/O 


Description 


YC1 


1 
2 


SO 
SDIR 






Serial communication data 
Serial communication control 




Connected to 

the main 

controller 

PWB 


3 


SI 


I 


Serial communication data reception 




4 


ENGIRN 





Serial communication interrupt 




5 


VPPSEL 


I 


Engine program write control 




[KP-801] 

via 

engine-main 

controllers 

relay PWB 

[KP-802] 


6 

7 


GND 
VDOp 


I 


Ground 
Image data 




8 
9 
10 
11 
12 


VDOn 
GND 
VD1p 
VD1n 
VHALF 


I 

I 
I 




Image data 

Ground 

Image data 

Image data 

Voltage for differential output 






13 


VD2p 


I 


Image data 






14 


VD2n 


I 


Image data 






15 


GND 


- 


Ground 






16 


VD3p 


I 


Image data 






17 


VD3n 


I 


Image data 






18 


GND 


- 


Ground 






19 


MMODDESp 


I 


Gradation control 






20 


MMODESn 


I 


Gradation control 






21 


GND 


- 


Ground 






22 


MMODELp 





Gradation control 






23 


MMODELn 


I 


Gradation control 






24 


GND 


- 


Ground 






25 


MODEp 


I 


Image/text data selection 






26 


MODEn 


I 


Image/text data selection 






27 


GND 


- 


Ground 






28 


VENBp 


I 


Image data output timing 






29 


VENBn 


I 


Image data output timing 






30 


GND 


- 


Ground 






31 


SVCLKp 


I 


Main (horizontal) scanning video clock 






32 


SVCLKn 


I 


Main (horizontal) scanning video clock 






33 


GND 


- 


Ground 






34 


LSYNCp 





Image data output scanning synchronization 






35 


LSYNCn 





Image data output scanning synchronization 






36 


GND 


- 


Ground 






37 


PURGE 





Paper exit completion 






38 


FPCLK 


I 


Serial communication clock, for the operation panel PWB 




39 


FPDIR 


I 


Serial communication control, for the operation panel 


PWB 




40 


PFRESn 


I 


Reset signal, for the operation panel PWB 






41 


SBSY 


I 


Serial communication control 






42 


GND 





Ground 






43 


SCLK 


I 


Serial communication clock 






44 


GND 


- 


Ground 






45 


PRGRESn 


I 


Engine program writing control 






46 


RSTn 





Reset 






47 


GND 


- 


Ground 






48 


VCC 





5VDC 






49 


GND 


- 


Ground 






50 


VCC 





5VDC 






51 


GND 


- 


Ground 






52 


VCC 





5VDC 






53 


GND 


- 


Ground 






54 


VCC 





5VDC 






55 


GND 


- 


Ground 





2-3-3 



FS-8000C/CD/CN 



Connector 


Pin No. 


Signal 


I/O 


Description 


YC1 


56 
57 
58 
59 
60 
61 
62 
63 
64 
65 
66 
67 
68 
69 
70 
71 
72 
73 
74 
75 
76 
77 
78 
79 
80 


vcc 

GND 

VCC 

GND 

VCC 

GND 

VCC 

GND 

VCC 

GND 

VCC 

GND 

VCC 

GND 

VCC 

GND 

VCC 

GND 

VCC 

VSYNC 

VCC 

PSEL 

GND 

FPDATA 

EOPO 





























5VDC 

Ground 

5VDC 

Ground 

5VDC 

Ground 

5VDC 

Ground 

5VDC 

Ground 

5VDC 

Ground 

5VDC 

Ground 

5VDC 

Ground 

5VDC 

Ground 

5VDC 

Sub (vertical) scanning video clock 

5VDC 

First/second page selection (Two pages mode), H: First , L: Second 

Ground 

Serial communication data, for operation panel 

Page ending signal 


Connected 

to the main 

controller 

PWB 
[KP-801] 

via 

engine-main 

controllers 

relay PWB 

[KP-802] 


YC2 








Not used 


YC4 


1 
2 
3 
4 
5 
6 


FPGND 

FPDIR 

FPCLK 

FPDAT 

FPRESn 

FPVCC 









Ground 

Serial communication control 

Serial communication clock 

Serial communication data 

Reset 

VCC 


Connected 

to Operation 

panel PWB 

[KP-805] 


YC5 


1 

2 

3 

4 

5 

6 

7 

8 

9 

10 

11 

12 


SCCLK 

SCRDY 

SCANER 

VPP 

PD 

POWSEL 

LEN 

LONB 

LASER5V 

GND 

VDOn 

VDOp 




I 




I 










Polygon motor revolution control clock 

Polygon motor continuous revolution signal, L: Continuous 

Polygon motor drive, L: Drive 

24 V DC 

Horizontal synchronization from PD PWB 

Laser power control 

Laser output enable 

Laser output drive 

5 V DC for laser scanner unit (for APC and PD PWB), Interlock switch off: 5 V DC is off 

Ground 

Image data signal 

Image data signal 


Connected 

toAPC 

PWB 

[KP-807] 



2-3-4 



FS-8000C/CD/CN 



Connector 


Pin No. 


Signal 


I/O 


Description 


YC6 


1 
2 
3 

4 


TEMP 
GND 
HMOUT 
VCC 


I 

I 



Temperature detection data (analog) 

Ground 

Humidity detection data (analog) 

5VDC 


Connected 

to the 

humidity/ 

temperature 

sensor 


YC7 


1 
2 

3 
4 
5 
6 
7 
8 
9 


FG 
VCC 

MMHU 

MMHV 

MMHW 

GND 

MMU 

MMV 

MMW 


I 



I 
I 
I 






FG (Frequency generation) pulse 

5VDC 

Main drive motor control 

Main drive motor control 

Main drive motor control 

Ground 

Main drive motor control 

Main drive motor control 

Main drive motor control 


Connected 
to the 

main drive 
motor 


YC8 


1 
2 
3 

4 
5 
6 
7 
8 
9 


FG 

VCC 

DMCHU 

DMCHV 

DMCHW 

GND 

DMCU 

DMCV 

DMCW 


I 



I 
I 
I 






FG (Frequency generation) pulse 

5VDC 

Color developers drive motor control 

Color developers drive motor control 

Color developers drive motor control 

Ground 

Color developers drive motor control 

Color developers drive motor control 

Color developers drive motor control 


Connected 

to the 

color 
developers 

drive 

motor 


YC9 


1 
2 
3 

4 
5 
6 
7 
8 
9 


FG 

VCC 

FMHU 

FMHV 

FMHW 

GND 

FMU 

FMV 

FMW 


I 



I 
I 
I 






FG (Frequency generation) pulse 

5VDC 

Paper feed motor control 

Paper feed motor control 

Paper feed motor control 

Ground 

Paper feed motor control 

Paper feed motor control 

Paper feed motor control 


Connected 
to the 

paper feed 
motor 


YC10 


1 
2 
3 

4 
5 
6 
7 
8 
9 
10 
11 
12 
13 
14 
15 
16 
17 
18 
19 
20 


GND 

GND 

VPP 

VPP 

TIREMn 

ANT1 

BAYREMn 

ANBDY 

BDYREMn 

BAMREMn 

ANBDM 

BDMREMn 

BARCREMn 

ANBDC 

BDCREMn 

BAKREMn 

ANBDK 

BDKREMn 

ANCR 

CRREMn 






















Ground 
Ground 
24 V DC 
24 V DC 

Primary transfer bias control (T1), L: On 
Primary transfer bias voltage control PWM 
Yellow developing AC bias control, L: On 
Yellow developing DC voltage control PWM 
Yellow developing bias control, L: On 
Magenta developing AC bias control, L: On 
Magenta developing DC voltage control PWM 
Magenta developing bias control, L: On 
Cyan developing AC bias control, L: On 
Cyan developing DC voltage control PWM 
Cyan developing bias control, L: On 
Black developing AC bias control, L: On 
Black developing DC voltage control PWM 
Black developing bias control, L: On 
Cleaning brush bias voltage control PWM 
Cleaning brush bias control, L: On 


Connected 

to the 

developing/ 

cleaning 

brush bias 

high 

voltage 

unit 



2-3-5 



FS-8000C/CD/CN 



Connector 


Pin No. 


Signal 


I/O 


Description 


YC11 


1 
2 
3 
4 
5 
6 
7 
8 


VCC 
VCC 
GND 
GND 
GND 
GND 
VPP 
VPP 


I 
I 

I 
I 


5VDC 
5VDC 
Ground 
Ground 
Ground 
Ground 
24 V DC 
24 V DC 


Connected 
to the 
power 

supply unit 


YC12 


1 
2 
3 
4 
5 
6 
7 
8 
9 
10 


FAN+24V 

GND 

PSCNT 

PSOFFn 

FANBn 

HTENn 

ZERCCn 

SDVPP 

LHEATn 

UHEATn 


I 


I 




I 






24 V DC for power supply unit fan motor (Not linked with the interlock switch) 

Ground 

Power supply control, L: Power on 

Power supply unit power down reset 

Power supply unit fan motor drive, L: On 

Heater lamp drive enable, L: Enable 

Zero cross signal, L: Input pulse 

24 V DC power supply off signal, L: Power off 

Lower heater lamp control, L: On 

Upper heater lamp control, L: On 


Connected 
to the 
power 

supply unit 


YC13 


1 
2 
3 
4 


GND 
VPP 

MCREMn 
ANMC 







Ground 

24 V DC 

Main charger grid bias control, L: On 

Main charger grid bias voltage PWM 


Connected to 

the main 
charger high 
voltage unit 


YC14 


1 
2 
3 
4 
5 


GND 

VPP 

ANSP 

SPREM 

SPER 








Ground 

24 V DC 

Separation charger bias voltage PWM 

Separation charger DC and AC signal, L: On 

Separation charger leak detection 


Connect to 

the 

separation 

charger high 

voltage unit 


YC15 


1 
2 
3 
4 
5 
6 


VCC 
GND 










5VDC 
Ground 


Connected 
to the 

EEPROM 
PWB 

[KP-889] 


YC16 


1 
2 
3 
4 
5 


LMT5V 

GND 

ANIDSIO 

ANIDSI1 

IDLED 









5 V DC (Fused) 

Ground 

Image density sensor detection 

Image density sensor detection 1 

5 V DC power supply for Image density sensor emitter (LED) 


Connected to 

the image 

density 

sensor 


YC17 


1 
2 
3 
4 
5 
6 
7 
8 
9 
10 


GND 

ERSDRn 

DRODS 

VCC 

GND 

DRECS 

DRECLK 

DREEDI 

DREDO 

DFSCUT 


I 
I 






I 





Ground 

Eraser lamp drive signal, H: On 

Off set drum sensor output pulse (synchronized with the drum rotation) 

5VDC 

Ground 

Chip select signal for EEPROM on the drum PWB 

Clock signal for EEPROM on the drum PWB 

Data input signal for EEPROM 

Data output signal for EEPROM 

Not used 


Connected 

to the 

drum PWB 

[KP-813] 



2-3-6 



FS-8000C/CD/CN 



Connector 


Pin No. 


Signal 


I/O 


Description 


YC18 


1 

2 

3 

4 

5 

6 

7 

8 

9 

10 

11 


vcc 

GND 

EXITJU 

EXITJL 

PFULL 

CVRUP 

CVRLW 

FUSET 

FDSET 

VPP 

FANFCD 




I 
I 
I 
I 
I 







5VDC 

Ground 

Upper paper exit sensor detection, L: detected 

Lower paper exit sensor detection, L: detected 

Paper full sensor detection, L: Full 

Left cover open/close detection, H: Open 

Face-up tray open/close detection, H: Open 

Face-up/down solenoid drive 

Face-up/down solenoid drive 

24 V DC 

Face-down unit fan motor drive 


Connected 

to the 
face-down 

PWB 
[KP-828] 


YC19 


1 
2 
3 


LMT5V 
VCRET 
LEDCC 




I 




5 V DC (Fused) 
5 V DC (Fused) 
Black toner empty sensor emitter [infrared LED] drive 


Connected to 

the black toner 

empty sensor 

[KP-895] 

Connected to 

the black toner 

empty sensor 

[KP-896] 


4 
5 
6 


PQCOM 

TONE 

GND 




I 


5 V DC (Fused, Via resister) 

Black toner empty sensor receiver [photo transistor] detection (analog) 

Ground 


YC20 


1 
2 
3 
4 
5 
6 


FTREF 

THERMU 

THERML 

WEBU 

WEBL 

VPP 




I 
I 






Reference voltage for fuser thermistors (approx. 4.2 V DC) 

Upper fuser thermistor detection 

Lower fuser thermistor detection 

Oil roller up/down solenoid drive 

Oil roller up/down solenoid drive 

24 V DC 


Connected 

to the 

fuser PWB 

[KP-811] 


YC21 


1 
2 

3 


VCC 
FFCUT 

OILEX 




I 



I 


5VDC 

Oil roller unit new/old detection, H: New 

Oil roller unit fuse blowout execution 

Oil roller unit installation detection, H: Installed 


Connected to 

the oil roller 

unit detection 

terminal 


YC22 


1 
2 
3 
4 
5 
6 
7 
8 
9 
10 


NC 

GND 

GND 

CTPD 

LMT5V 

CTEMP 

CMAGDR 

VPP 

CTMDR 

CTMCOM 


I 



I 





I 


Not used 

Ground 

Ground 

Cyan T/C sensor detection (analog) 

5 V DC (Fused) 

Cyan toner empty sensor [KP-820] detection, L: Empty 

Cyan developing roller drive clutch drive, L: On 

24 V DC 

Cyan toner feed motor drive (PWM) 

Cyan toner feed motor back electromotive force 


Connected 
to the 
cyan 

developer 
PWB 

[KP-815] 

Connected 
to the 
black 

developer 
PWB 

[KP-817] 


11 
12 
13 
14 
15 
16 
17 
18 
19 
20 


VPP 

KMAGDR 

KTPD 

KTEMP 

KTMCOM 

KTMDR 

LMT5V 

GND 

GND 

DLKSET 





I 
I 
I 




I 


24 V DC 

Black developing roller drive clutch drive, L: On 

Black T/C sensor detection (analog) 

Black 

Black toner feed motor back electromotive force 

Black toner feed motor drive (PWM) 

5 V DC (Fused) 

Ground 

Ground 

Black developer installation detection, H: Installed 



2-3-7 



FS-8000C/CD/CN 



Connector 


Pin No. 


Signal 


l/O 


Description 


YC23 


1 
2 
3 
4 
5 
6 
7 
8 
9 


GND 

GND 

YTPD 

LMT5V 

YTEMP 

YMAGDR 

VPP 

YTMDR 

YTMCOM 


1 


1 





1 


Ground 

Ground 

Yellow T/C sensor detection (analog) 

5 V DC (Fused) 

Yellow toner empty sensor [KP-820] detection, L: Empty 

Yellow developer drive clutch drive, L: On 

24 V DC 

Yellow toner feed motor drive (PWM) 

Yellow toner feed motor back electromotive force 


Connected 

to the 

yellow 

developer 

PWB 
[KP-847] 

Connected 

to the 

magenta 

developer 

PWB [KP- 

815] 


10 
11 
12 
13 
14 
15 
16 
17 
18 


MTMCOM 

MTMDR 

VPP 

MMAGDR 

MTEMP 

LMT5V 

MTPD 

GND 

GND 


1 




1 
1 





Magenta toner feed motor back electromotive force 

Magenta toner feed motor drive (PWM) 

24 V DC 

Magenta developer drive clutch drive, L: On 

Magenta toner empty sensor [KP-820] detection, L: Empty 

5 V DC (Fused) 

Magenta T/C sensor detection (analog) 

Ground 

Ground 


YC24 


1 

2 

3 

4 

5 

6 

7 

8 

9 

10 

11 

12 

13 

14 

15 

16 

17 

18 

19 

20 


GND 

GND 

FEDEX 

SUBROL 

FEEDS 

FEDDR 

FANFP 

REGDR 

VPP 

VPP 

JAMF 

TNRKDR 

T2INI 

GND 

NC 

BRSET 

EXITJD 

DUFDR 

VCC 

EXFDR 


1 
1 









1 



1 






Ground 

Ground 

Paper feed unit installation detection, L: Installed 

Not used 

Registration sensor detection, L: Detected 

Paper feed clutch drive 

Paper conveying fan motors 1 and 2 drive 

Registration clutch drive 

24 V DC 

24 V DC 

Not used 

Black toner feed clutch drive 

Secondary transfer unit home position detection, L: Home 

Ground 

Not used 

Secondary transfer unit shift clutch drive 

Duplex paper exit sensor detection, L: Detected 

Duplex paper exit selection solenoid drive(For duplexer) 

5VDC 

Duplex paper exit selection solenoid drive(For printer) 


Connected 

to the feed 

drive PWB 

[KP-822] 


YC25 


1 
2 


GND 
FANC+ 





Ground 

Main controller box fan motor drive 


Connected to 
the main 

controller box 
fan motor 


YC26 


1 
2 


GND 
FANF+ 





Ground 

Fuser unit fan motor drive 


Connected to 

the fuser unit 

fan motor 



2-3-8 



FS-8000C/CD/CN 



Connector 


Pin No. 


Signal 


I/O 


Description 


YC27 


1 


VPP 





24 V DC 


Connected 
to the 

main drive 
PWB 


2 
3 


MIXDRn 
YSOL1 





Not used 

Yellow developer magnet solenoid drive 


4 
5 


BRUSDR 
MSOL1 






Cleaning brush unit drive clutch drive 
Magenta developer magnet solenoid drive 


[KP-824] 


6 

7 


ROLDR 
CSOL1 






Cleaning brush unit shift solenoid drive 
Cyan developer magnet solenoid drive 




8 


BUINI 


I 


Cleaning brush unit position sensor detection, H: Home 




9 


KSOL1 





Black developer magnet solenoid drive 




10 


VCC 





5VDC 




11 


GND 


- 


Ground 


YC28 


1 
2 
3 


VCC 

MPFSET 

HANDS 




I 


5VDC 

Not used 

MP tray paper detection, H: Not detected 


Connected 
to the MP 
tray feed 

PWB 
[KP-832] 


4 
5 


LONG 
GND 


I 


MP tray bottom plate position sensor detection, H: Home 
Ground 


6 

7 


VPP 
BTTRDR 






24 V DC 

MP tray bottom plate solenoid drive 




8 


MPFDR 





MP tray feed clutch drive, L: On 


YC29 


1 


WTLED 





Waste toner full sensor PWB [KP-849] emitter (LED) drive 


Connected 
to the 


2 


PFSEL2 





Communication control 2, for option paper feeder/duplex unit/document finisher, etc. 


3 


PFSEL1 





Communication control 1 , for option paper feeder/duplex unit/document finisher, etc. 


4 


FINRX 


I 


Communication data, reception for document finisher 


paper 

feeder/ 

options 

relay PWB 

[KP830] 


5 


PFSELO 





Communication control 0, for option paper feeder/duplex unit/document finisher, etc. 


6 
7 
8 
9 


DUSEN 
WTONER 
VCC 
VCC 


I 
I 





Duplexer paper exit sensor detection, H: Detected 

Waste toner full sensor PWB [KP-849], toner full detection, L: full 

5VDC 

5VDC 




10 


VPP 





24 V DC 




11 


STPEN 





Option document finisher power-off, H: Off 




12 


STOBN 





Fuser unit drive motor (stepping drive) control 




13 


VPP 





24 V DC 




14 


STOAN 





Fuser unit drive motor (stepping drive) control 




15 


GND 


- 


Ground 




16 


T2INV 


I 


Transfer roller bias (negative) control, H: On 




17 


VPP 





24 V DC 




18 


ANT2 





Transfer roller bias voltage control PWM 




19 


T2REM 





Transfer roller bias (positive) control, H: On 




20 


GND 


- 


Ground 




21 


STOAP 





Fuser unit drive motor (stepping drive) control 




22 


VPP 





24 V DC 




23 


GND 


- 


Ground 




24 


STOBP 





Fuser unit drive motor (stepping drive) control 




25 


WTBS 


I 


Waste toner full sensor PWB [KP-849], waste toner bottle detection, H: Installed 




26 


VPP 





24 V DC 




27 


VCC 





5VDC 




28 


VCC 





5VDC 




29 


GND 


- 


Ground 




30 


GND 


- 


Ground 




31 


PFSDO 





Communication data output, for option paper feeder/duplex unit/document finisher, etc. 




32 


PDSCLK 





Communication clock, for option paper feeder/duplex unit/document finisher, etc. 




33 


PFSDI 


I 


Communication data input, for option paper feeder/duplex unit/document finisher, etc. 




34 


FINTX 





Communication control, for option document finisher 



2-3-9 



FS-8000C/CD/CN 



Connector 



Pin No. 



Signal 



I/O 



Description 



YC30 



Connected 
to the 
black 

developer 
drive 
motor 



DMFG 

VCC 

DMKHU 

DMKHV 

DMKHW 

GND 

DMKU 

DMKV 

DMKW 



I 

O 
I 
I 
I 

o 
o 
o 



FG (Frequency generation) pulse 

5VDC 

Black developer drive motor control 

Black developer drive motor control 

Black developer drive motor control 

Ground 

Black developer drive motor control 

Black developer drive motor control 

Black developer drive motor control 



2-3-10 



2-3-2 Main controller PWB [KP-800] 



FS-8000C/CD/CN 



Main controller PWB 



MPU 

XPC750CX 

400 MHz 

(U3) 



I Address Bus (MPCA32 bit) 



A CD 



66 MHz CLK 



Address Bus (BA 32 bit) 



66 MHz CLK 



Data Bus (DH 32 bit) 



Buffer 



o: 



Buffer 




TT ^T 



CLK Driver 



14 MHz 



System ROM 

DIMM 4 MB 

2 Slots 



Font ROM 
4MB 



AD Bus (BAD 32 bit) 



rr 



Address Bus (BA 32 bit) 



Gate 
Array 
(U7) 



> 


k 


>> 

c 


II 


^~ 


o 












CO 


CD 


CO 


o 


< 


01 




m 


o 


3 


u. 


' 


(- 


c 


CO 


F 




CO 

Q 


o 
o 


CD 
Q. 

o 


o 
CD 

"O 

> 


CD 

c 

O) 

c 
HI 


1 


f > 


1 



33 MHz CLK 



Video Data (Serial) 



QVCLK 



Engine-main 

controllers 

relay PWB 

[KP-802] 



< > 



^Divider; 
(U6) 



66 MHz CLK 



66 MHz CLK 



< > 



Gate 
Array 
(U38) 



( "SD R AMAddress Bus (DA 1 1 bit) ) 



SDRAM Data Bus (DD 32 bit) 



H 



Main RAM 
Expansion SDRAM DIMM x 2 slots 



7^3- 



<^> 



Data Bus (16D 16 bit) 



API 

2MB 



Memory 
"— card slot "— ' 



To engine 

controller PWB 

[KP-801] 



Parallel Serial 
interface interface 



KUIO0 



NIC* 



Jkuioi |_ 



*NIC (Network interface 
card) is standard-installed 
for FS-8000CN. 



Figure 2-3-2 Main controller PWB [KP-800] block diagram 



2-3-1 1 



CONTENTS 
2-4 Appendixes 

Connection diagram 2-4-2 

Maintenance kits 2-4-3 

Periodic maintenance procedures 2-4-4 



FS-8000C/CD/CN 

Connection diagram 




Paper feed i 



2-4-2 



FS-8000C/CD/CN 



Maintenance kits 



Maintenance kit part name 


Part No. 


Fig. No. 


Ref. No. 


Name used in the service manual 


Parts name 


MK-800A Maintenance kit A 


MK-800A MAINTENANCE KIT A 








Drum unit 


DK-800 DRUM UNIT 


5PLPXARAPKX 


07 


- 


(including main charger unit) 


(including MC-800 MAIN CHARGER ASSY 


5PLPXAQAPKX 


07 


101 


Ozone filter 


and FILTER KIT) 


2BM42790 


02 


002 


Primary transfer unit 


TR-800P PRI TRANSFER UNIT 


5PLPXASAPKX 


17 


- 


(including cleaning brush unit) 


(including CLEANER ASSY) 


2BM93270 


17 


056 


Secondary transfer unit 


TR-800S SEC TRANSFER UNIT 


5PLPXATAPKX 


05 


101 


*1 


MK-801 B Maintenance kit B 


MK-801 B MAINTENANCE KIT B 










Black developer 


DV-800K DEVELOPER BLACK 


5PLPXAXAPKX 


- 


- 




Fuser unit (with oil roller unit) 


FK-800(E) FUSER UNIT (E) 


5PLPXAUAPKE 


06 


- 






FK-800(U) FUSER UNIT (U) 


5PLPXAVAAMA 


06 


- 




Separation charger unit 


SC-800 SEPARATE CHARGER 


5PLPXBRAPKX 


05 


114 


*2 


MK-800B Maintenance kit B 


MK-800B MAINTENANCE KIT B 










Black developer 


DV-800K DEVELOPER BLACK 


5PLPXAXAPKX 


- 


- 




Fuser unit (with oil roller unit) 


FK-800(E) FUSER UNIT (E) 


5PLPXAUAPKE 


06 


- 






FK-800(U) FUSER UNIT (U) 


5PLPXAVAAMA 


06 


- 


MK-800C Maintenance kit C 


MK-800C MAINTENANCE KIT C 








Yellow developer 


DV-800Y DEVELOPER YELLOW 


5PLPXBAAPKX 


- 


- 


Magenta developer 


DV-800M DEVELOPER MAGENTA 


5PLPXAZAPKX 


- 


- 


Cyan developer 


DV-800C DEVELOPER CYAN 


5PLPXAYAPKX 


- 


- 


*2 


MK-800D Maintenance kit D 


MK-800D MAINTENANCE KIT D 










Separation charger unit 


(MK-800D)SC-800 SEPARATE CHARGER 


5PLPXBRAPKX 


05 


114 



* 1 For European countries and Australia. 
* 2 For U.S., Canada, and Asian countries. 



2-4-3 



FS-8000C/CD/CN 

Periodic maintenance procedures 



Section 


Maintenance 
part/location 


Method 


Maintenance cycle 


Points and cautions 


Page 


Test print 


Maximum print size 


Test print 


At any service visit. 







Section 


Maintenance 
part/location 


Method 


Maintenance cycle 


Points and cautions 


Page 


Paper feed unit 
and secondary 
transfer unit 


Paper conveying belts 


Clean 

Check and replace 


At any service visit. 
At any service visit. 


Clean with alcohol or a dry cloth. 
Check and replace if damaged. 


1-4-17 
1-6-7 


Upper registration roller 


Clean 


At any service visit. 


Clean with alcohol or a dry cloth. 


1-4-16 


Lower registration roller 


Clean 

Check and replace 


At any service visit. 
At any service visit. 


Clean with alcohol or a dry cloth. 
Check and replace if damaged. 


1-4-16 
1-6-9 


Secondary transfer unit 
shift clutch 


Check and replace 


At any service visit. 


Check and replace if damaged. 


1 -6-23 


Paper conveying fan 
motors 1 and 2 


Check and replace 


At any service visit. 


Check and replace if damaged. 


1-6-8 


Registration sensor 


Clean 


At any service visit. 


Clean with alcohol or a dry cloth. 


1-4-17 


Separation charger wire 


Clean 


At any service visit. 


Clean by using wire cleaner. 


1-4-16 


Separation charger shield 


Clean 


At any service visit. 


Clean with alcohol or a dry cloth. 


1-6-21 



Section 


Maintenance 
part/location 


Method 


Maintenance cycle 


Points and cautions 


Page 


Drum unit and 
main charger 
unit 


Drum 


Check and clean 

Perform 
maintenance mode 


At any service visit. 
At any service visit. 


Check drum surface and clean 
by using soft cloth if dirty. 
Perform the maintenance mode 
(drum surface refreshing) if an 
image problem occurs. 


1-6-14 
1-4-8 


Drum R flange 


Clean 


At any service visit. 


Clean the gear tooth. 


1-4-19 


Drum gear Z1 4 Z28H and 
shaft 


Clean and grease 


At any service visit. 


Clean and then apply grease 
gear and shaft. 


1-4-19 


ldlegearZ17Z22Hand 
shaft 


Clean and grease 


At any service visit. 


Clean and then apply grease 
gear and shaft. 


1-4-19 


CLNgearZ17 


Clean and grease 


At any service visit. 


Clean and then apply grease 
gear. 


1-4-19 


Main charger wire 


Clean 


At any service visit. 


Clean by using wire cleaner. 


1-4-13 


Main charger grid 


Clean 


At any service visit. 


Clean by using grid cleaner. 


1-4-14 


Main charger shield 


Clean 


At any service visit. 


Clean with alcohol or a dry cloth. 


1-4-15 



Section 


Maintenance 
part/location 


Method 


Maintenance cycle 


Points and cautions 


Page 


Primary 
transfer unit 
and cleaning 
brush unit 


Primary transfer unit 


Clean 


At any service visit. 


Clean the platform for the 
cleaning brush unit with alcohol 
or a dry cloth. 


1-4-18 


Cleaning brush unit 


Clean 


At any service visit. 


Clean the waste toner exit with 
alcohol or a dry cloth. 


1-4-18 



2-4-4 



FS-8000C/CD/CN 



Section 


Maintenance 
part/location 


Method 


Maintenance cycle 


Points and cautions 


Page 


Fuser unit 


Separators 


Clean 


At any service visit. 


Clean with alcohol or a dry cloth 
after heat cooled down. 


1-4-22 


Paper chute 


Clean 


At any service visit. 


Clean with alcohol or a dry cloth 


1-4-22 


Heat and heat/press roller 


Print a solid black 
page. 


At any service visit. 


Perform the procedure described 
on page 1 -4-21 if a paper dust 
problem occurs. 


1-4-21 



2-4-5 



KYOCERA MITA EUROPE B.V. 

Hoeksteen 40, 2132 MS Hoofddorp, 

The Netherlands 

Phone: (020) 6540000 

Home page: http://www.kyoceramita-europe.com 

Email: info@kyoceramita-europe.com 

KYOCERA MITA NEDERLAND B.V. 

Hoeksteen 40, 2132 MS Hoofddorp, 
The Netherlands 
Phone: (020) 5877200 

KYOCERA MITA (UK) LIMITED 

8 Beacontree Plaza 
Gillette Way, 
Reading RG2 OBS UK 
Phone: (0118) 931 1500 

KYOCERA MITA ITALIA S.P.A. 

Via Verdi 89/91 20063 Cernusco sul Naviglio 
(Milano) Italy 
Phone:02-92179 1 

S.A. KYOCERA MITA BELGIUM N.V. 

Hermesstraat 8A, 1930 Zaventem, Belgium 
Phone: (02) 7209270 

KYOCERA MITA FRANCE S.A. 

Pare les Algorithmes 

SAINT AUBIN 

91194GIF-SUR-YVETTE 

France 

Phone: (01) 69852600 

KYOCERA MITA ESPANA S.A. 

Edificio Mita, Avda. De Manacor N 5 2, 
Urb. Parque Rozas, Apartado de Correos 76, 
28230 Las Rozas, Madrid, Spain 
Phone: (91) 631-8392 

KYOCERA MITA FINLAND OY 

Kirvesmiehenkatu 4, 00810 Helsinki, 

Finland 

Phone: (09) 478-05200 

KYOCERA MITA (SCHWEIZ) AG 

Holzliwisen, Industriestrasse 28, 
8604 Volketswil, Switzerland 
Phone: (01) 908 4949 

KYOCERA MITA DEUTSCHLAND GMBH 

Mollsfeld 12 40670 Meerbusch, 

Germany 

Phone:02159-918120 

KYOCERA MITA GMBH AUSTRIA 

Eduard-Kittenberger-Gasse 95, 
1230, Wien, Austria 
Phone: (01) 86338-0 

KYOCERA MITA SVENSKA AB 

Siktgatan 2, 

162 50 Vallingby, Sweden 

Phone: (08) 4719999 



KYOCERA MITA DANMARK A/S 

Industrivej 11, DK-4632 Bjaeverskov, 

Denmark 

Phone: 56871100 

KYOCERA MITA PORTUGAL LDA. 

CASCAISTOCK-Armazem n e 8, 
Rua das Fisgas, Alcoitao, 
2765 Estoril, Portugal 
Phone: (21) 4602221 

KYOCERA MITA SOUTH AFRICA 

(PTY) LTD. 

UNIT 3, "Kyalami Crescent," 
Kyalami Business Park, 
1685 Midrand, South Africa 
Phone: (11) 466-3290 

KYOCERA MITA 
AMERICA, INC. 

Headquarters: 

225 Sand Road, P.O. Box 40008, 

Fairfield, New Jersey 07004-0008, 

U.S.A. 

Phone: (973) 808-8444 

KYOCERA MITA AUSTRALIA PTY. 
LTD. 

Level 3, 6-10 Talavera Road, North Ryde, 
N.S.W. 21 13 Australia 
Phone: (02) 9888-9999 

KYOCERA MITA NEW ZEALAND LTD. 

1 -3 Parkhead Place, 
Albany, Auckland, 
New Zealand 
Phone: (09) 415-4517 

KYOCERA MITA (THAILAND) CORP., 
LTD. 

9/209 Ratchada-Prachachem Road, 
Bang Sue, Bangkok 10800, Thailand 
Phone: (02) 586-0320 

KYOCERA MITA SINGAPORE 
PTE LTD. 

121 Genting Lane, 3rd Level, 
Singapore 349572 
Phone: (65) 7418733 

KYOCERA MITA HONG KONG 
LIMITED 

11/F., Mita Centre, 
552-566, Castle Peak Road, 
Tsuen Wan, New Territories, 
Hong Kong 
Phone: (852) 24297422 

KYOCERA MITA 
CORPORATION 

2-28, 1-chome, Tamatsukuri, Chuo-ku 
Osaka 540-8585, Japan 
Phone: (06) 6764-3555 



KYOCERA MITA AMERICA, INC. 



Headquarters: 

225 Sand Road, P.O. Box 40008 
Fairfield, New Jersey 07004-0008 
TEL : (973) 808-8444 
FAX : (973) 882-6000 

New York Show Room: 

149 West 51st street, 
New York, NY 10019 
TEL : (212) 554-2679 
FAX: (212) 554-2625 

Northeastern Region: 

225 Sand Road, P.O. Box 40008 
Fairfield, New Jersey 07004-0008 
TEL : (973) 808-8444 
FAX : (973) 882-4401 

Midwestern Region: 

201 Hansen Court Suite 119 
Wood Dale, Illinois 60179 
TEL : (630) 238-9982 
FAX : (630) 238-9487 



Western Region: 

14101 Alton Parkway, 
Irvine, California 92618-7006 
TEL : (949) 457-9000 
FAX: (949) 457-91 19 

Southeastern Region: 

1500 Oakbrook Drive, 
Norcross, Georgia 30093 
TEL : (770) 729-9786 
FAX : (770) 729-9873 

Southwestern Region: 

2825 West Story Road, 
Irving, Texas 75038-5299 
TEL : (972) 550-8987 
FAX : (972) 570-4704 

Dallas Parts Distribution Center 
& National Training Center: 

2825 West Story Road, 
Irving, Texas 75038-5299 
TEL : (972) 659-0055 
FAX: (972) 570-5816 



KYOCERA MITA CANADA, LTD. 

6120 Kestrel Road, Mississauga, 
Ontario L5T1S8, Canada 
TEL : (905) 670-4425 
FAX: (905) 670-81 16 



KYOCERA MITA MEXICO, S.A. DE C.V. 

Av. 1 6 de Septiembre #407 
Col. Santa Ines, 
02130 Azcapotzalco 
Mexico, D.F. Mexico 
TEL : (5) 383-2741 
FAX : (5) 383-7804 



©2001 KYOCERA MITA CORPORATION 

^KldDCERB is a trademark of Kyocera Corporation 

mifa is a registered trademark of KYOCERA MITA CORPORATION